Ponca Gauge — Historical Event Reporting

USGS 07055660 · Ponca → Pruitt (NPS commercial-float section) · record 2014–2026 · 169 storm excursions, 514 stage dwells.

USGS 07055660 — Buffalo River near Ponca, AR

Section: Ponca → Pruitt (NPS commercial-float section)
NPS flow buckets (cfs): Very Low <100 · Low 100–200 · Moderate 200–900 · High 900–1600 · Flood ≥1600
Commercial float window: NPS permits outfitter launches between 100 and 1600 cfs (Low through High).
Contributing HUC12s (151 sq mi above the gauge):
- 110100050201 — Terrapin Branch-Buffalo River
- 110100050202 — Beech Creek
- 110100050203 — Smith Creek-Buffalo River
- 110100050205 — Whiteley Creek-Buffalo River
Links: American Whitewater · NPS river conditions

How events are defined. A storm "excursion" is a sustained period at or above the Moderate floor (200 cfs). Within each, a stage dwell is ≥4 hours held in one NPS bucket (Moderate / High / Flood — Very Low / Low ignored). Brief (<4 h) blips into an adjacent bucket do not split a longer dwell. One storm that shoots to Flood then recedes therefore yields several dwells (e.g. Flood → High → Moderate on the way down), all grouped under that storm. Rainfall is anchored at the storm onset (the originating rise). Start cfs is the baseline low flow in the 72 h before onset — the level the river was sitting at before the rise. Rain 72h is the basin-average depth over the 4 HUC12s; Max 1-HUC 72h is the wettest single sub-watershed, which catches localized storms the basin-mean dilutes (full per-HUC breakdown in each storm's detail). All times Central.

Time in each NPS stage, by year

Days per calendar year the Ponca gauge sat in each NPS bucket (hours ÷ 24), drawn from the full USGS discharge record back to May 2008 — independent of the rainfall archive used for the events below. The river lives in Very Low / Low most of the year; Moderate is the workhorse outfitter range, while High and Flood are comparatively rare. The Valid days column shows reporting coverage; 2008 (record starts May 3) and the current year are partial.

Year	Very Low	Low	Moderate	High	Flood	Valid days
2008	182.6	29.8	26.1	2.0	2.3	243
2009	180.0	54.4	110.6	9.9	7.0	362
2010	251.0	33.7	61.5	5.7	1.1	353
2011	234.3	54.4	61.4	6.5	8.3	365
2012	285.9	26.7	26.8	3.6	3.2	346
2013	214.6	58.2	82.8	4.3	2.0	362
2014	196.8	80.2	63.8	4.5	1.5	347
2015	202.6	50.0	89.0	12.5	10.8	365
2016	246.6	37.3	74.8	5.3	1.7	366
2017	207.0	68.2	79.1	4.6	6.2	365
2018	242.9	44.8	64.2	7.2	5.8	365
2019	126.9	69.1	145.6	14.7	8.5	365
2020	176.9	56.1	111.2	14.0	7.8	366
2021	223.8	44.1	80.2	11.8	5.2	365
2022	204.6	48.4	92.0	12.2	7.4	365
2023	261.5	37.4	57.8	4.1	4.1	365
2024	243.0	48.9	58.0	10.1	5.5	365
2025	234.7	65.9	52.8	5.7	4.2	363
2026	69.3	48.7	22.0	0.4	0.1	140

Section A — modern MRMS (2020-10-14 → present): 77 storm excursions

NOAA MRMS RadarOnly_QPE_01H from the NOAA Open-Data PDS. Newest storms first.

Storm onset (CT)	Peak stage	Start cfs	Peak cfs	Span (d)	Rain 24h (in)	Rain 72h (in)	Max 1-HUC 72h (in)
2026-05-19 20:00 CDT	Moderate	70	231	0.5	1.50	1.55	1.73
2026-05-11 01:00 CDT	Moderate	109	260	0.4	0.94	1.07	1.59
2026-05-05 13:00 CDT	Moderate	129	323	1.0	0.87	0.87	1.12
2026-04-28 21:00 CDT	High	161	908	3.6	1.26	1.57	1.97
2026-04-24 10:00 CDT	Moderate	107	392	2.7	1.25	1.25	1.29
2026-04-04 11:00 CDT	Moderate	72	829	3.5	1.56	1.91	2.12
2026-03-15 16:00 CDT	Moderate	191	221	0.6	0.37	0.37	0.54
2026-03-07 05:00 CST	Flood	72	2,180	8.0	0.78	1.63	1.87
2026-02-15 02:00 CST	Moderate	40	298	2.0	1.08	1.08	1.26
2025-09-23 15:00 CDT	High	0	1,460	1.2	1.04	3.72	4.10
2025-06-13 21:00 CDT	Moderate	120	342	1.9	0.80	1.17	1.63
2025-06-07 06:00 CDT	Flood	80	5,862	3.0	2.04	2.11	2.55
2025-06-06 18:00 CDT	Moderate	80	222	0.2	0.93	1.21	1.42
2025-05-24 13:00 CDT	Flood	184	4,280	7.2	0.69	1.01	1.21
2025-05-19 21:00 CDT	Flood	65	8,478	4.1	0.96	3.08	3.42
2025-05-18 23:00 CDT	Moderate	65	334	0.7	2.19	2.19	2.25
2025-04-30 04:00 CDT	Flood	174	2,190	7.9	0.76	0.95	1.08
2025-04-27 09:00 CDT	Moderate	170	234	1.2	0.57	0.82	1.10
2025-04-19 08:00 CDT	Flood	114	2,062	6.4	0.68	0.68	0.96
2025-04-02 16:00 CDT	Flood	49	15,775	9.7	2.18	2.28	2.51
2025-03-04 13:00 CST	Moderate	108	788	5.4	0.66	0.66	0.68
2025-02-11 05:00 CST	Moderate	104	780	8.4	1.02	1.03	1.29
2025-01-30 07:00 CST	Flood	53	2,820	5.3	1.26	1.26	1.41
2024-12-24 08:00 CST	Moderate	174	721	7.5	0.74	0.74	0.84
2024-12-16 10:00 CST	Flood	27	2,422	6.5	1.03	1.67	1.99
2024-12-14 23:00 CST	Moderate	27	229	0.4	0.64	0.64	0.84
2024-11-18 10:00 CST	Flood	82	1,952	4.7	0.50	0.50	0.60
2024-11-04 01:00 CST	Flood	1	32,600	8.2	2.89	2.95	3.48
2024-07-09 14:00 CDT	Moderate	3	334	0.3	2.70	3.25	3.72
2024-04-26 16:00 CDT	Flood	46	4,835	15.5	1.54	1.92	2.25
2024-03-25 11:00 CDT	Flood	106	4,062	6.6	0.94	0.95	1.04
2024-03-14 22:00 CDT	Flood	118	2,285	5.5	1.35	1.35	1.72
2024-03-09 08:00 CST	Moderate	104	236	1.1	0.45	1.13	1.46
2024-02-04 01:00 CST	High	154	1,408	6.3	1.06	1.06	1.29
2024-01-22 23:00 CST	Flood	35	2,060	10.0	1.16	1.17	1.26
2024-01-09 02:00 CST	Moderate	21	463	1.1	0.93	0.93	1.06
2023-12-25 07:00 CST	Moderate	10	739	1.0	0.99	1.04	1.34
2023-05-10 20:00 CDT	Flood	51	2,975	5.9	1.19	1.19	2.02
2023-03-02 23:00 CST	Flood	115	8,135	36.7	0.87	0.87	1.02
2023-02-08 02:00 CST	Flood	169	4,978	15.5	0.50	0.50	0.69
2023-01-28 21:00 CST	Moderate	83	424	4.2	0.00	0.00	0.00
2023-01-03 01:00 CST	Moderate	49	823	3.2	1.14	1.14	1.41
2022-12-08 04:00 CST	Flood	59	2,402	10.3	0.93	0.93	1.04
2022-11-26 21:00 CST	High	22	1,548	3.0	0.50	1.44	1.68
2022-11-04 21:00 CDT	Flood	19	2,002	1.2	1.33	1.33	1.57
2022-07-30 09:00 CDT	Flood	6	2,760	0.6	1.98	3.81	4.81
2022-06-01 23:00 CDT	Moderate	95	812	1.1	1.08	1.08	1.74
2022-05-24 14:00 CDT	Flood	93	5,208	5.3	0.54	2.29	2.63
2022-05-23 20:00 CDT	Moderate	74	228	0.4	0.41	2.20	2.51
2022-05-21 16:00 CDT	High	74	1,482	1.3	1.63	1.64	1.80
2022-05-15 14:00 CDT	Flood	82	3,990	2.5	2.83	2.86	3.72
2022-05-02 11:00 CDT	Flood	162	9,212	8.8	0.52	0.53	0.81
2022-04-11 09:00 CDT	Flood	186	7,155	20.0	0.55	0.55	0.67
2022-03-30 07:00 CDT	Flood	190	6,190	11.5	0.22	0.22	0.30
2022-03-18 11:00 CDT	High	116	1,480	11.2	0.62	0.62	0.83
2022-02-17 10:00 CST	Flood	113	2,540	23.3	0.60	0.60	0.71
2022-02-08 22:00 CST	Moderate	91	258	3.5	0.00	0.00	0.00
2022-01-19 03:00 CST	Moderate	78	297	2.9	0.00	0.00	0.00
2022-01-01 10:00 CST	Flood	55	1,872	4.5	1.00	1.16	1.26
2021-12-17 12:00 CST	Flood	19	2,600	4.2	0.82	1.08	1.27
2021-10-15 08:00 CDT	Moderate	3	552	1.0	0.70	2.53	3.07
2021-07-17 20:00 CDT	Moderate	7	823	0.6	1.37	2.34	2.86
2021-06-06 10:00 CDT	Moderate	148	874	4.6	0.59	0.59	0.86
2021-05-17 10:00 CDT	High	70	1,595	18.5	0.47	0.48	0.61
2021-05-11 21:00 CDT	Moderate	120	272	0.7	0.41	0.59	0.64
2021-04-24 02:00 CDT	Flood	88	13,500	15.6	0.73	0.79	0.82
2021-04-14 08:00 CDT	High	39	1,388	4.7	1.00	1.29	1.32
2021-03-13 10:00 CST	Flood	84	3,668	18.8	0.48	0.53	0.57
2021-02-27 20:00 CST	Moderate	112	708	6.5	0.19	0.40	0.49
2021-01-30 15:00 CST	Moderate	176	483	4.3	0.41	0.41	0.45
2021-01-25 11:00 CST	Moderate	56	723	3.2	0.58	0.60	0.72
2020-12-30 16:00 CST	Flood	43	2,688	15.4	0.52	0.54	0.61
2020-12-14 02:00 CST	Moderate	48	211	0.5	0.58	1.06	1.22
2020-12-12 03:00 CST	Moderate	48	338	0.9	0.48	0.48	0.59
2020-11-25 01:00 CST	Flood	25	1,978	5.2	0.59	0.69	0.86
2020-11-22 13:00 CST	Moderate	14	259	0.6	0.44	0.44	0.55
2020-10-27 09:00 CDT	Flood	7	20,025	7.8	1.38	1.39	1.43

2026-05-19 20:00 CDT · peak Moderate 231 cfs · 1 dwells · 1.50" rain/24h

Onset (rise crosses 200 cfs)Tue 2026-05-19 20:00 CDT

Peak2026-05-19 22:00 CDT — 231 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span13 h (0.5 days)

Baseline flow (min, 72 h pre-onset)70 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-05-19 20:00	2026-05-20 08:00	13 h	231

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.01
preceding 6 h	0.14
preceding 12 h	1.42
preceding 24 h	1.50
preceding 48 h	1.55
preceding 72 h	1.55

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.19	1.31
Beech Creek	50	1.65	1.67
Smith Creek-Buffalo River	87	1.34	1.39
Whiteley Creek-Buffalo River ★	161	1.71	1.73

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-05-19 19:00	186	4.13
−3 h	2026-05-19 17:00	136	3.94
−6 h	2026-05-19 14:00	116	3.85
−12 h	2026-05-19 08:00	71	3.58
−24 h	2026-05-18 20:00	71	3.58
−48 h	2026-05-17 20:00	75	3.61
−72 h	2026-05-16 20:00	82	3.65

2026-05-11 01:00 CDT · peak Moderate 260 cfs · 1 dwells · 0.94" rain/24h

Onset (rise crosses 200 cfs)Mon 2026-05-11 01:00 CDT

Peak2026-05-11 01:00 CDT — 260 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span10 h (0.4 days)

Baseline flow (min, 72 h pre-onset)109 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-05-11 01:00	2026-05-11 10:00	10 h	260

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.04
preceding 6 h	0.12
preceding 12 h	0.87
preceding 24 h	0.94
preceding 48 h	0.94
preceding 72 h	1.07

Rain onset → crest— in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.40	1.59
Beech Creek	50	1.22	1.38
Smith Creek-Buffalo River	87	1.25	1.40
Whiteley Creek-Buffalo River	161	0.41	0.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-05-11 00:00	183	4.11
−3 h	2026-05-10 22:00	132	3.93
−6 h	2026-05-10 19:00	116	3.85
−12 h	2026-05-10 13:00	109	3.81
−24 h	2026-05-10 01:00	116	3.85
−48 h	2026-05-09 01:00	132	3.92
−72 h	2026-05-08 01:00	149	4.00

2026-05-05 13:00 CDT · peak Moderate 323 cfs · 1 dwells · 0.87" rain/24h

Onset (rise crosses 200 cfs)Tue 2026-05-05 13:00 CDT

Peak2026-05-05 15:00 CDT — 323 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span25 h (1.0 days)

Baseline flow (min, 72 h pre-onset)129 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-05-05 13:00	2026-05-06 13:00	25 h	323

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.87
preceding 24 h	0.87
preceding 48 h	0.87
preceding 72 h	0.87

Rain onset → crest0.00 in

Rain over full excursion0.06 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.12	1.12
Beech Creek	50	0.65	0.65
Smith Creek-Buffalo River	87	0.74	0.74
Whiteley Creek-Buffalo River	161	0.86	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-05-05 12:00	169	4.07
−3 h	2026-05-05 10:00	152	4.02
−6 h	2026-05-05 07:00	152	4.01
−12 h	2026-05-05 01:00	130	3.92
−24 h	2026-05-04 13:00	138	3.95
−48 h	2026-05-03 13:00	159	4.04
−72 h	2026-05-02 13:00	197	4.16

2026-04-28 21:00 CDT · peak High 908 cfs · 1 dwells · 1.26" rain/24h

Onset (rise crosses 200 cfs)Tue 2026-04-28 21:00 CDT

Peak2026-04-29 03:00 CDT — 908 cfs (High)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span86 h (3.6 days)

Baseline flow (min, 72 h pre-onset)161 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-04-28 21:00	2026-05-02 10:00	86 h (3.6 d)	908

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.75
preceding 6 h	0.88
preceding 12 h	1.26
preceding 24 h	1.26
preceding 48 h	1.31
preceding 72 h	1.57

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.37	1.97
Beech Creek	50	1.06	1.33
Smith Creek-Buffalo River	87	1.01	1.34
Whiteley Creek-Buffalo River	161	1.39	1.55

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-04-28 20:00	187	4.15
−3 h	2026-04-28 18:00	166	4.08
−6 h	2026-04-28 15:00	163	4.07
−12 h	2026-04-28 09:00	164	4.07
−24 h	2026-04-27 21:00	178	4.13
−48 h	2026-04-26 21:00	210	4.25
−72 h	2026-04-25 21:00	227	4.30

2026-04-24 10:00 CDT · peak Moderate 392 cfs · 1 dwells · 1.25" rain/24h

Onset (rise crosses 200 cfs)Fri 2026-04-24 10:00 CDT

Peak2026-04-24 18:00 CDT — 392 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span65 h (2.7 days)

Baseline flow (min, 72 h pre-onset)107 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-04-24 10:00	2026-04-27 02:00	65 h (2.7 d)	392

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.34
preceding 6 h	1.23
preceding 12 h	1.25
preceding 24 h	1.25
preceding 48 h	1.25
preceding 72 h	1.25

Rain onset → crest0.00 in

Rain over full excursion0.40 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.26	1.26
Beech Creek	50	1.19	1.19
Smith Creek-Buffalo River	87	1.22	1.22
Whiteley Creek-Buffalo River ★	161	1.29	1.29

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-04-24 09:00	188	4.16
−3 h	2026-04-24 07:00	144	3.98
−6 h	2026-04-24 04:00	109	3.81
−12 h	2026-04-23 22:00	108	3.81
−24 h	2026-04-23 10:00	110	3.82
−48 h	2026-04-22 10:00	118	3.86
−72 h	2026-04-21 10:00	128	3.91

2026-04-04 11:00 CDT · peak Moderate 829 cfs · 1 dwells · 1.56" rain/24h

Onset (rise crosses 200 cfs)Sat 2026-04-04 11:00 CDT

Peak2026-04-04 16:00 CDT — 829 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span85 h (3.5 days)

Baseline flow (min, 72 h pre-onset)72 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-04-04 11:00	2026-04-07 23:00	85 h (3.5 d)	829

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.10
preceding 6 h	0.55
preceding 12 h	1.56
preceding 24 h	1.56
preceding 48 h	1.58
preceding 72 h	1.91

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.60	2.12
Beech Creek	50	1.70	2.04
Smith Creek-Buffalo River	87	1.59	2.01
Whiteley Creek-Buffalo River	161	1.47	1.69

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-04-04 10:00	193	4.18
−3 h	2026-04-04 08:00	125	3.89
−6 h	2026-04-04 05:00	99	3.75
−12 h	2026-04-03 23:00	78	3.63
−24 h	2026-04-03 11:00	76	3.62
−48 h	2026-04-02 11:00	74	3.60
−72 h	2026-04-01 11:00	74	3.60

2026-03-15 16:00 CDT · peak Moderate 221 cfs · 1 dwells · 0.37" rain/24h

Onset (rise crosses 200 cfs)Sun 2026-03-15 16:00 CDT

Peak2026-03-16 00:00 CDT — 221 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span15 h (0.6 days)

Baseline flow (min, 72 h pre-onset)191 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-03-15 16:00	2026-03-16 06:00	15 h	221

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.36
preceding 6 h	0.37
preceding 12 h	0.37
preceding 24 h	0.37
preceding 48 h	0.37
preceding 72 h	0.37

Rain onset → crest0.01 in

Rain over full excursion0.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.15	0.15
Beech Creek	50	0.44	0.44
Smith Creek-Buffalo River	87	0.22	0.22
Whiteley Creek-Buffalo River ★	161	0.54	0.54

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-03-15 15:00	197	4.20
−3 h	2026-03-15 13:00	193	4.18
−6 h	2026-03-15 10:00	195	4.19
−12 h	2026-03-15 04:00	200	4.21
−24 h	2026-03-14 16:00	210	4.25
−48 h	2026-03-13 16:00	247	4.37
−72 h	2026-03-12 16:00	292	4.50

2026-03-07 05:00 CST · peak Flood 2,180 cfs · 2 dwells · 0.78" rain/24h

Onset (rise crosses 200 cfs)Sat 2026-03-07 05:00 CST

Peak2026-03-07 07:00 CST — 2,180 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span192 h (8.0 days)

Baseline flow (min, 72 h pre-onset)72 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2026-03-07 06:00	2026-03-07 15:00	10 h	2,180
Moderate	falling	2026-03-07 16:00	2026-03-15 05:00	181 h (7.5 d)	889

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.19
preceding 3 h	0.73
preceding 6 h	0.78
preceding 12 h	0.78
preceding 24 h	0.78
preceding 48 h	0.85
preceding 72 h	1.63

Rain onset → crest0.87 in

Rain over full excursion1.87 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.36	1.59
Beech Creek	50	0.83	1.63
Smith Creek-Buffalo River	87	0.43	1.21
Whiteley Creek-Buffalo River ★	161	1.20	1.87

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-03-07 04:00	161	4.05
−3 h	2026-03-07 02:00	147	4.00
−6 h	2026-03-06 23:00	146	3.99
−12 h	2026-03-06 17:00	151	4.01
−24 h	2026-03-06 05:00	168	4.09
−48 h	2026-03-05 05:00	77	3.62
−72 h	2026-03-04 05:00	72	3.59

2026-02-15 02:00 CST · peak Moderate 298 cfs · 1 dwells · 1.08" rain/24h

Onset (rise crosses 200 cfs)Sun 2026-02-15 02:00 CST

Peak2026-02-15 14:00 CST — 298 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span49 h (2.0 days)

Baseline flow (min, 72 h pre-onset)40 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2026-02-15 02:00	2026-02-17 02:00	49 h (2.0 d)	298

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.22
preceding 6 h	0.22
preceding 12 h	0.37
preceding 24 h	1.08
preceding 48 h	1.08
preceding 72 h	1.08

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.26	1.26
Beech Creek	50	1.10	1.10
Smith Creek-Buffalo River	87	1.18	1.18
Whiteley Creek-Buffalo River	161	0.92	0.92

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2026-02-15 01:00	185	4.29
−3 h	2026-02-14 23:00	110	3.98
−6 h	2026-02-14 20:00	80	3.83
−12 h	2026-02-14 14:00	55	3.72
−24 h	2026-02-14 02:00	40	3.65
−48 h	2026-02-13 02:00	42	3.67
−72 h	2026-02-12 02:00	45	3.70

2025-09-23 15:00 CDT · peak High 1,460 cfs · 3 dwells · 1.04" rain/24h

Onset (rise crosses 200 cfs)Tue 2025-09-23 15:00 CDT

Peak2025-09-23 22:00 CDT — 1,460 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span28 h (1.2 days)

Baseline flow (min, 72 h pre-onset)0 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2025-09-23 15:00	2025-09-23 19:00	5 h	549
High	peak	2025-09-23 20:00	2025-09-24 02:00	7 h	1,460
Moderate	falling	2025-09-24 03:00	2025-09-24 18:00	16 h	861

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.77
preceding 3 h	1.02
preceding 6 h	1.03
preceding 12 h	1.03
preceding 24 h	1.04
preceding 48 h	2.33
preceding 72 h	3.72

Rain onset → crest1.18 in

Rain over full excursion1.21 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.27	2.79
Beech Creek ★	50	0.97	4.10
Smith Creek-Buffalo River	87	0.75	3.90
Whiteley Creek-Buffalo River	161	1.65	4.05

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-09-23 14:00	111	4.08
−3 h	2025-09-23 12:00	69	3.83
−6 h	2025-09-23 09:00	77	3.88
−12 h	2025-09-23 03:00	101	4.03
−24 h	2025-09-22 15:00	40	3.58
−48 h	2025-09-21 15:00	18	3.30
−72 h	2025-09-20 15:00	0	2.18

2025-06-13 21:00 CDT · peak Moderate 342 cfs · 1 dwells · 0.80" rain/24h

Onset (rise crosses 200 cfs)Fri 2025-06-13 21:00 CDT

Peak2025-06-14 03:00 CDT — 342 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span45 h (1.9 days)

Baseline flow (min, 72 h pre-onset)120 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-06-13 21:00	2025-06-15 17:00	45 h	342

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.13
preceding 6 h	0.20
preceding 12 h	0.57
preceding 24 h	0.80
preceding 48 h	1.17
preceding 72 h	1.17

Rain onset → crest0.02 in

Rain over full excursion0.33 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.13	1.63
Beech Creek	50	0.76	1.16
Smith Creek-Buffalo River	87	0.73	1.07
Whiteley Creek-Buffalo River	161	0.67	0.98

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-06-13 20:00	178	4.30
−3 h	2025-06-13 18:00	160	4.22
−6 h	2025-06-13 15:00	151	4.19
−12 h	2025-06-13 09:00	126	4.08
−24 h	2025-06-12 21:00	122	4.07
−48 h	2025-06-11 21:00	134	4.12
−72 h	2025-06-10 21:00	168	4.27

2025-06-07 06:00 CDT · peak Flood 5,862 cfs · 3 dwells · 2.04" rain/24h

Onset (rise crosses 200 cfs)Sat 2025-06-07 06:00 CDT

Peak2025-06-07 10:00 CDT — 5,862 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span71 h (3.0 days)

Baseline flow (min, 72 h pre-onset)80 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2025-06-07 08:00	2025-06-07 17:00	10 h	5,862
High	falling	2025-06-07 18:00	2025-06-08 00:00	7 h	1,418
Moderate	falling	2025-06-08 01:00	2025-06-10 04:00	52 h (2.2 d)	855

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.52
preceding 3 h	1.10
preceding 6 h	1.11
preceding 12 h	1.11
preceding 24 h	2.04
preceding 48 h	2.06
preceding 72 h	2.11

Rain onset → crest0.76 in

Rain over full excursion0.80 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.50	2.55
Beech Creek	50	2.21	2.29
Smith Creek-Buffalo River	87	2.17	2.24
Whiteley Creek-Buffalo River	161	1.66	1.72

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-06-07 05:00	189	4.34
−3 h	2025-06-07 03:00	166	4.25
−6 h	2025-06-07 00:00	186	4.33
−12 h	2025-06-06 18:00	222	4.46
−24 h	2025-06-06 06:00	81	3.82
−48 h	2025-06-05 06:00	93	3.90
−72 h	2025-06-04 06:00	102	3.96

2025-06-06 18:00 CDT · peak Moderate 222 cfs · 1 dwells · 0.93" rain/24h

Onset (rise crosses 200 cfs)Fri 2025-06-06 18:00 CDT

Peak2025-06-06 18:00 CDT — 222 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span5 h (0.2 days)

Baseline flow (min, 72 h pre-onset)80 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-06-06 18:00	2025-06-06 22:00	5 h	222

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.93
preceding 24 h	0.93
preceding 48 h	0.94
preceding 72 h	1.21

Rain onset → crest— in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.10	1.42
Beech Creek	50	0.93	1.31
Smith Creek-Buffalo River	87	1.02	1.32
Whiteley Creek-Buffalo River	161	0.78	1.01

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-06-06 17:00	173	4.28
−3 h	2025-06-06 15:00	122	4.05
−6 h	2025-06-06 12:00	103	3.96
−12 h	2025-06-06 06:00	81	3.82
−24 h	2025-06-05 18:00	87	3.86
−48 h	2025-06-04 18:00	102	3.96
−72 h	2025-06-03 18:00	106	3.98

2025-05-24 13:00 CDT · peak Flood 4,280 cfs · 6 dwells · 0.69" rain/24h

Onset (rise crosses 200 cfs)Sat 2025-05-24 13:00 CDT

Peak2025-05-25 17:00 CDT — 4,280 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span174 h (7.2 days)

Baseline flow (min, 72 h pre-onset)184 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2025-05-24 13:00	2025-05-25 15:00	27 h	764
Flood	peak	2025-05-25 16:00	2025-05-25 23:00	8 h	4,280
High	falling	2025-05-26 00:00	2025-05-27 09:00	34 h	1,548
Moderate	falling	2025-05-27 10:00	2025-05-27 21:00	12 h	882
High	falling	2025-05-27 22:00	2025-05-28 06:00	9 h	1,108
Moderate	falling	2025-05-28 07:00	2025-05-31 18:00	84 h (3.5 d)	886

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.11
preceding 6 h	0.49
preceding 12 h	0.69
preceding 24 h	0.69
preceding 48 h	0.98
preceding 72 h	1.01

Rain onset → crest1.59 in

Rain over full excursion2.31 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.94	1.01
Beech Creek ★	50	0.63	1.21
Smith Creek-Buffalo River	87	0.73	1.17
Whiteley Creek-Buffalo River	161	0.53	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-05-24 12:00	196	4.38
−3 h	2025-05-24 10:00	193	4.36
−6 h	2025-05-24 07:00	184	4.33
−12 h	2025-05-24 01:00	193	4.36
−24 h	2025-05-23 13:00	226	4.48
−48 h	2025-05-22 13:00	269	4.62
−72 h	2025-05-21 13:00	453	5.07

2025-05-19 21:00 CDT · peak Flood 8,478 cfs · 3 dwells · 0.96" rain/24h

Onset (rise crosses 200 cfs)Mon 2025-05-19 21:00 CDT

Peak2025-05-19 23:00 CDT — 8,478 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span98 h (4.1 days)

Baseline flow (min, 72 h pre-onset)65 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2025-05-19 22:00	2025-05-20 12:00	15 h	8,478
High	falling	2025-05-20 13:00	2025-05-20 20:00	8 h	1,568
Moderate	falling	2025-05-20 21:00	2025-05-23 22:00	74 h (3.1 d)	888

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.63
preceding 3 h	0.78
preceding 6 h	0.89
preceding 12 h	0.89
preceding 24 h	0.96
preceding 48 h	3.08
preceding 72 h	3.08

Rain onset → crest1.14 in

Rain over full excursion1.83 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.69	2.93
Beech Creek ★	50	1.37	3.42
Smith Creek-Buffalo River	87	0.87	3.11
Whiteley Creek-Buffalo River	161	1.03	3.05

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-05-19 20:00	193	4.46
−3 h	2025-05-19 18:00	186	4.44
−6 h	2025-05-19 15:00	198	4.49
−12 h	2025-05-19 09:00	242	4.64
−24 h	2025-05-18 21:00	102	4.06
−48 h	2025-05-17 21:00	66	3.84
−72 h	2025-05-16 21:00	73	3.89

2025-05-18 23:00 CDT · peak Moderate 334 cfs · 1 dwells · 2.19" rain/24h

Onset (rise crosses 200 cfs)Sun 2025-05-18 23:00 CDT

Peak2025-05-19 03:00 CDT — 334 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span16 h (0.7 days)

Baseline flow (min, 72 h pre-onset)65 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-05-18 23:00	2025-05-19 14:00	16 h	334

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.10
preceding 6 h	1.34
preceding 12 h	1.80
preceding 24 h	2.19
preceding 48 h	2.19
preceding 72 h	2.19

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	2.24	2.24
Beech Creek	50	2.06	2.06
Smith Creek-Buffalo River ★	87	2.25	2.25
Whiteley Creek-Buffalo River	161	2.16	2.16

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-05-18 22:00	141	4.25
−3 h	2025-05-18 20:00	97	4.03
−6 h	2025-05-18 17:00	72	3.88
−12 h	2025-05-18 11:00	68	3.86
−24 h	2025-05-17 23:00	66	3.84
−48 h	2025-05-16 23:00	73	3.89
−72 h	2025-05-15 23:00	80	3.93

2025-04-30 04:00 CDT · peak Flood 2,190 cfs · 6 dwells · 0.76" rain/24h

Onset (rise crosses 200 cfs)Wed 2025-04-30 04:00 CDT

Peak2025-05-02 12:00 CDT — 2,190 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span190 h (7.9 days)

Baseline flow (min, 72 h pre-onset)174 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2025-04-30 04:00	2025-04-30 18:00	15 h	703
High	rising	2025-04-30 19:00	2025-05-01 07:00	13 h	1,438
Moderate	rising	2025-05-01 08:00	2025-05-02 09:00	26 h	871
Flood	peak	2025-05-02 11:00	2025-05-02 14:00	4 h	2,190
High	falling	2025-05-02 15:00	2025-05-02 22:00	8 h	1,522
Moderate	falling	2025-05-02 23:00	2025-05-08 01:00	123 h (5.1 d)	878

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.39
preceding 3 h	0.49
preceding 6 h	0.49
preceding 12 h	0.51
preceding 24 h	0.76
preceding 48 h	0.78
preceding 72 h	0.95

Rain onset → crest1.71 in

Rain over full excursion2.13 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.75	1.08
Beech Creek	50	0.71	0.84
Smith Creek-Buffalo River	87	0.56	0.74
Whiteley Creek-Buffalo River	161	0.90	1.03

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-04-30 03:00	185	4.44
−3 h	2025-04-30 01:00	174	4.40
−6 h	2025-04-29 22:00	176	4.41
−12 h	2025-04-29 16:00	177	4.41
−24 h	2025-04-29 04:00	180	4.42
−48 h	2025-04-28 04:00	213	4.54
−72 h	2025-04-27 04:00	185	4.44

2025-04-27 09:00 CDT · peak Moderate 234 cfs · 1 dwells · 0.57" rain/24h

Onset (rise crosses 200 cfs)Sun 2025-04-27 09:00 CDT

Peak2025-04-27 19:00 CDT — 234 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span29 h (1.2 days)

Baseline flow (min, 72 h pre-onset)170 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-04-27 09:00	2025-04-28 13:00	29 h	234

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.05
preceding 6 h	0.17
preceding 12 h	0.28
preceding 24 h	0.57
preceding 48 h	0.57
preceding 72 h	0.82

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.81	1.10
Beech Creek	50	0.55	0.80
Smith Creek-Buffalo River	87	0.62	0.90
Whiteley Creek-Buffalo River	161	0.41	0.62

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-04-27 08:00	199	4.50
−3 h	2025-04-27 06:00	193	4.47
−6 h	2025-04-27 03:00	180	4.42
−12 h	2025-04-26 21:00	174	4.40
−24 h	2025-04-26 09:00	178	4.42
−48 h	2025-04-25 09:00	210	4.53
−72 h	2025-04-24 09:00	219	4.57

2025-04-19 08:00 CDT · peak Flood 2,062 cfs · 2 dwells · 0.68" rain/24h

Onset (rise crosses 200 cfs)Sat 2025-04-19 08:00 CDT

Peak2025-04-19 11:00 CDT — 2,062 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span154 h (6.4 days)

Baseline flow (min, 72 h pre-onset)114 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2025-04-19 10:00	2025-04-19 16:00	7 h	2,062
Moderate	falling	2025-04-19 17:00	2025-04-25 17:00	145 h (6.0 d)	908

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.09
preceding 3 h	0.21
preceding 6 h	0.67
preceding 12 h	0.68
preceding 24 h	0.68
preceding 48 h	0.68
preceding 72 h	0.68

Rain onset → crest0.69 in

Rain over full excursion1.66 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.32	0.32
Beech Creek	50	0.93	0.93
Smith Creek-Buffalo River	87	0.41	0.41
Whiteley Creek-Buffalo River ★	161	0.96	0.96

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-04-19 07:00	176	4.41
−3 h	2025-04-19 05:00	150	4.30
−6 h	2025-04-19 02:00	114	4.13
−12 h	2025-04-18 20:00	116	4.14
−24 h	2025-04-18 08:00	120	4.16
−48 h	2025-04-17 08:00	124	4.18
−72 h	2025-04-16 08:00	133	4.22

2025-04-02 16:00 CDT · peak Flood 15,775 cfs · 6 dwells · 2.18" rain/24h

Onset (rise crosses 200 cfs)Wed 2025-04-02 16:00 CDT

Peak2025-04-05 13:00 CDT — 15,775 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span232 h (9.7 days)

Baseline flow (min, 72 h pre-onset)49 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	rising	2025-04-02 18:00	2025-04-02 21:00	4 h	2,142
High	rising	2025-04-02 22:00	2025-04-03 04:00	7 h	1,528
Moderate	rising	2025-04-03 05:00	2025-04-04 08:00	28 h	922
Flood	peak	2025-04-04 11:00	2025-04-06 07:00	45 h	15,775
High	falling	2025-04-06 08:00	2025-04-07 01:00	18 h	1,588
Moderate	falling	2025-04-07 02:00	2025-04-12 07:00	126 h (5.2 d)	871

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	1.28
preceding 6 h	2.18
preceding 12 h	2.18
preceding 24 h	2.18
preceding 48 h	2.18
preceding 72 h	2.28

Rain onset → crest4.41 in

Rain over full excursion4.47 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.47	2.51
Beech Creek	50	1.99	2.10
Smith Creek-Buffalo River	87	2.17	2.25
Whiteley Creek-Buffalo River	161	2.07	2.22

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-04-02 15:00	199	4.79
−3 h	2025-04-02 13:00	69	4.17
−6 h	2025-04-02 10:00	51	4.02
−12 h	2025-04-02 04:00	50	4.02
−24 h	2025-04-01 16:00	51	4.03
−48 h	2025-03-31 16:00	56	4.07
−72 h	2025-03-30 16:00	57	4.08

2025-03-04 13:00 CST · peak Moderate 788 cfs · 1 dwells · 0.66" rain/24h

Onset (rise crosses 200 cfs)Tue 2025-03-04 13:00 CST

Peak2025-03-04 20:00 CST — 788 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span129 h (5.4 days)

Baseline flow (min, 72 h pre-onset)108 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-03-04 13:00	2025-03-09 22:00	129 h (5.4 d)	788

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.45
preceding 6 h	0.66
preceding 12 h	0.66
preceding 24 h	0.66
preceding 48 h	0.66
preceding 72 h	0.66

Rain onset → crest0.08 in

Rain over full excursion0.23 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.67	0.68
Beech Creek	50	0.64	0.65
Smith Creek-Buffalo River	87	0.65	0.66
Whiteley Creek-Buffalo River	161	0.66	0.66

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-03-04 12:00	162	4.66
−3 h	2025-03-04 10:00	120	4.47
−6 h	2025-03-04 07:00	108	4.40
−12 h	2025-03-04 01:00	108	4.40
−24 h	2025-03-03 13:00	110	4.41
−48 h	2025-03-02 13:00	116	4.45
−72 h	2025-03-01 13:00	128	4.51

2025-02-11 05:00 CST · peak Moderate 780 cfs · 1 dwells · 1.02" rain/24h

Onset (rise crosses 200 cfs)Tue 2025-02-11 05:00 CST

Peak2025-02-12 20:00 CST — 780 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span202 h (8.4 days)

Baseline flow (min, 72 h pre-onset)104 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2025-02-11 05:00	2025-02-19 14:00	202 h (8.4 d)	780

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.12
preceding 6 h	0.48
preceding 12 h	1.02
preceding 24 h	1.02
preceding 48 h	1.03
preceding 72 h	1.03

Rain onset → crest0.28 in

Rain over full excursion0.81 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.28	1.29
Beech Creek	50	1.01	1.01
Smith Creek-Buffalo River	87	1.16	1.16
Whiteley Creek-Buffalo River	161	0.81	0.81

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-02-11 04:00	183	4.77
−3 h	2025-02-11 02:00	139	4.59
−6 h	2025-02-10 23:00	118	4.49
−12 h	2025-02-10 17:00	104	4.42
−24 h	2025-02-10 05:00	109	4.44
−48 h	2025-02-09 05:00	125	4.53
−72 h	2025-02-08 05:00	136	4.58

2025-01-30 07:00 CST · peak Flood 2,820 cfs · 3 dwells · 1.26" rain/24h

Onset (rise crosses 200 cfs)Thu 2025-01-30 07:00 CST

Peak2025-01-30 13:00 CST — 2,820 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span128 h (5.3 days)

Baseline flow (min, 72 h pre-onset)53 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2025-01-30 11:00	2025-01-30 22:00	12 h	2,820
High	falling	2025-01-30 23:00	2025-01-31 06:00	8 h	1,482
Moderate	falling	2025-01-31 07:00	2025-02-04 14:00	104 h (4.3 d)	886

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.17
preceding 3 h	0.39
preceding 6 h	0.75
preceding 12 h	1.26
preceding 24 h	1.26
preceding 48 h	1.26
preceding 72 h	1.26

Rain onset → crest0.43 in

Rain over full excursion0.48 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.41	1.41
Beech Creek	50	1.15	1.15
Smith Creek-Buffalo River	87	1.23	1.23
Whiteley Creek-Buffalo River	161	1.22	1.22

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2025-01-30 06:00	167	4.73
−3 h	2025-01-30 04:00	114	4.49
−6 h	2025-01-30 01:00	67	4.21
−12 h	2025-01-29 19:00	54	4.10
−24 h	2025-01-29 07:00	53	4.10
−48 h	2025-01-28 07:00	56	4.12
−72 h	2025-01-27 07:00	59	4.15

2024-12-24 08:00 CST · peak Moderate 721 cfs · 1 dwells · 0.74" rain/24h

Onset (rise crosses 200 cfs)Tue 2024-12-24 08:00 CST

Peak2024-12-27 04:00 CST — 721 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span179 h (7.5 days)

Baseline flow (min, 72 h pre-onset)174 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2024-12-24 08:00	2024-12-31 18:00	179 h (7.5 d)	721

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.08
preceding 3 h	0.44
preceding 6 h	0.65
preceding 12 h	0.74
preceding 24 h	0.74
preceding 48 h	0.74
preceding 72 h	0.74

Rain onset → crest0.53 in

Rain over full excursion0.63 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.84	0.84
Beech Creek	50	0.71	0.71
Smith Creek-Buffalo River	87	0.74	0.74
Whiteley Creek-Buffalo River	161	0.70	0.70

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-12-24 07:00	197	4.92
−3 h	2024-12-24 05:00	185	4.87
−6 h	2024-12-24 02:00	174	4.83
−12 h	2024-12-23 20:00	178	4.84
−24 h	2024-12-23 08:00	190	4.89
−48 h	2024-12-22 08:00	221	5.00
−72 h	2024-12-21 08:00	279	5.14

2024-12-16 10:00 CST · peak Flood 2,422 cfs · 5 dwells · 1.03" rain/24h

Onset (rise crosses 200 cfs)Mon 2024-12-16 10:00 CST

Peak2024-12-16 12:00 CST — 2,422 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span157 h (6.5 days)

Baseline flow (min, 72 h pre-onset)27 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2024-12-16 11:00	2024-12-16 17:00	7 h	2,422
High	falling	2024-12-16 18:00	2024-12-17 03:00	10 h	1,540
Moderate	falling	2024-12-17 04:00	2024-12-18 02:00	23 h	876
High	falling	2024-12-18 03:00	2024-12-18 15:00	13 h	1,350
Moderate	falling	2024-12-18 16:00	2024-12-22 22:00	103 h (4.3 d)	893

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.39
preceding 3 h	0.69
preceding 6 h	0.89
preceding 12 h	1.03
preceding 24 h	1.03
preceding 48 h	1.05
preceding 72 h	1.67

Rain onset → crest0.09 in

Rain over full excursion0.80 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.73	1.56
Beech Creek ★	50	1.39	1.99
Smith Creek-Buffalo River	87	1.19	1.80
Whiteley Creek-Buffalo River	161	1.01	1.56

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-12-16 09:00	183	4.88
−3 h	2024-12-16 07:00	162	4.80
−6 h	2024-12-16 04:00	162	4.80
−12 h	2024-12-15 22:00	164	4.81
−24 h	2024-12-15 10:00	192	4.92
−48 h	2024-12-14 10:00	40	4.07
−72 h	2024-12-13 10:00	28	3.93

2024-12-14 23:00 CST · peak Moderate 229 cfs · 1 dwells · 0.64" rain/24h

Onset (rise crosses 200 cfs)Sat 2024-12-14 23:00 CST

Peak2024-12-15 00:00 CST — 229 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span9 h (0.4 days)

Baseline flow (min, 72 h pre-onset)27 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2024-12-14 23:00	2024-12-15 07:00	9 h	229

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.01
preceding 24 h	0.64
preceding 48 h	0.64
preceding 72 h	0.64

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.84	0.84
Beech Creek	50	0.60	0.60
Smith Creek-Buffalo River	87	0.61	0.61
Whiteley Creek-Buffalo River	161	0.55	0.55

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-12-14 22:00	168	4.82
−3 h	2024-12-14 20:00	47	4.13
−6 h	2024-12-14 17:00	44	4.11
−12 h	2024-12-14 11:00	40	4.07
−24 h	2024-12-13 23:00	27	3.92
−48 h	2024-12-12 23:00	28	3.94
−72 h	2024-12-11 23:00	30	3.96

2024-11-18 10:00 CST · peak Flood 1,952 cfs · 4 dwells · 0.50" rain/24h

Onset (rise crosses 200 cfs)Mon 2024-11-18 10:00 CST

Peak2024-11-18 22:00 CST — 1,952 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span113 h (4.7 days)

Baseline flow (min, 72 h pre-onset)82 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2024-11-18 10:00	2024-11-18 19:00	10 h	680
Flood	peak	2024-11-18 21:00	2024-11-19 01:00	5 h	1,952
High	falling	2024-11-19 02:00	2024-11-19 11:00	10 h	1,542
Moderate	falling	2024-11-19 12:00	2024-11-23 02:00	87 h (3.6 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.48
preceding 24 h	0.50
preceding 48 h	0.50
preceding 72 h	0.50

Rain onset → crest0.41 in

Rain over full excursion0.41 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.60	0.60
Beech Creek	50	0.43	0.43
Smith Creek-Buffalo River	87	0.50	0.50
Whiteley Creek-Buffalo River	161	0.47	0.47

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-11-18 09:00	147	4.79
−3 h	2024-11-18 07:00	113	4.63
−6 h	2024-11-18 04:00	105	4.59
−12 h	2024-11-17 22:00	85	4.47
−24 h	2024-11-17 10:00	86	4.48
−48 h	2024-11-16 10:00	96	4.54
−72 h	2024-11-15 10:00	115	4.64

2024-11-04 01:00 CST · peak Flood 32,600 cfs · 3 dwells · 2.89" rain/24h

Onset (rise crosses 200 cfs)Mon 2024-11-04 01:00 CST

Peak2024-11-05 00:00 CST — 32,600 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span198 h (8.2 days)

Baseline flow (min, 72 h pre-onset)1 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2024-11-04 04:00	2024-11-05 22:00	43 h	32,600
High	falling	2024-11-05 23:00	2024-11-06 10:00	12 h	1,505
Moderate	falling	2024-11-06 11:00	2024-11-12 06:00	140 h (5.8 d)	860

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.67
preceding 3 h	1.51
preceding 6 h	1.83
preceding 12 h	2.15
preceding 24 h	2.89
preceding 48 h	2.95
preceding 72 h	2.95

Rain onset → crest5.11 in

Rain over full excursion7.08 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	3.40	3.48
Beech Creek	50	3.00	3.07
Smith Creek-Buffalo River	87	2.97	3.04
Whiteley Creek-Buffalo River	161	2.51	2.55

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-11-04 00:00	187	3.12
−3 h	2024-11-03 22:00	8	1.80
−6 h	2024-11-03 19:00	4	1.68
−12 h	2024-11-03 13:00	5	1.72
−24 h	2024-11-03 01:00	1	1.47
−48 h	2024-11-02 02:00	1	1.48
−72 h	2024-11-01 02:00	1	1.48

2024-07-09 14:00 CDT · peak Moderate 334 cfs · 1 dwells · 2.70" rain/24h

Onset (rise crosses 200 cfs)Tue 2024-07-09 14:00 CDT

Peak2024-07-09 15:00 CDT — 334 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span7 h (0.3 days)

Baseline flow (min, 72 h pre-onset)3 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2024-07-09 14:00	2024-07-09 20:00	7 h	334

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.09
preceding 12 h	1.79
preceding 24 h	2.70
preceding 48 h	3.25
preceding 72 h	3.25

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	3.07	3.51
Beech Creek	50	2.54	3.15
Smith Creek-Buffalo River ★	87	2.84	3.72
Whiteley Creek-Buffalo River	161	2.47	2.88

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-07-09 13:00	85	2.49
−3 h	2024-07-09 11:00	102	2.59
−6 h	2024-07-09 08:00	119	2.68
−12 h	2024-07-09 02:00	6	1.61
−24 h	2024-07-08 14:00	4	1.53
−48 h	2024-07-07 14:00	4	1.50
−72 h	2024-07-06 14:00	4	1.51

2024-04-26 16:00 CDT · peak Flood 4,835 cfs · 13 dwells · 1.54" rain/24h

Onset (rise crosses 200 cfs)Fri 2024-04-26 16:00 CDT

Peak2024-04-29 05:00 CDT — 4,835 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span372 h (15.5 days)

Baseline flow (min, 72 h pre-onset)46 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	rising	2024-04-26 19:00	2024-04-27 02:00	8 h	2,340
High	rising	2024-04-27 03:00	2024-04-27 13:00	11 h	1,485
Moderate	rising	2024-04-27 14:00	2024-04-28 07:00	18 h	875
Flood	rising	2024-04-28 09:00	2024-04-28 20:00	12 h	2,578
High	rising	2024-04-28 21:00	2024-04-29 00:00	4 h	1,548
Flood	peak	2024-04-29 01:00	2024-04-29 20:00	20 h	4,835
High	falling	2024-04-29 21:00	2024-04-30 14:00	18 h	1,568
Moderate	falling	2024-04-30 15:00	2024-05-05 16:00	122 h (5.1 d)	899
Flood	falling	2024-05-05 19:00	2024-05-06 02:00	8 h	1,970
High	falling	2024-05-06 03:00	2024-05-06 19:00	17 h	1,558
Moderate	falling	2024-05-06 20:00	2024-05-07 06:00	11 h	888
High	falling	2024-05-07 07:00	2024-05-07 20:00	14 h	1,322
Moderate	falling	2024-05-07 21:00	2024-05-12 03:00	103 h (4.3 d)	876

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.30
preceding 3 h	0.42
preceding 6 h	1.32
preceding 12 h	1.54
preceding 24 h	1.54
preceding 48 h	1.92
preceding 72 h	1.92

Rain onset → crest2.49 in

Rain over full excursion6.15 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.72	2.25
Beech Creek	50	1.83	2.22
Smith Creek-Buffalo River	87	1.68	2.12
Whiteley Creek-Buffalo River	161	1.27	1.54

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-04-26 15:00	162	2.81
−3 h	2024-04-26 13:00	103	2.53
−6 h	2024-04-26 10:00	61	2.25
−12 h	2024-04-26 04:00	52	2.19
−24 h	2024-04-25 16:00	54	2.20
−48 h	2024-04-24 16:00	49	2.16
−72 h	2024-04-23 16:00	50	2.17

2024-03-25 11:00 CDT · peak Flood 4,062 cfs · 3 dwells · 0.94" rain/24h

Onset (rise crosses 200 cfs)Mon 2024-03-25 11:00 CDT

Peak2024-03-25 19:00 CDT — 4,062 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span159 h (6.6 days)

Baseline flow (min, 72 h pre-onset)106 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2024-03-25 15:00	2024-03-26 07:00	17 h	4,062
High	falling	2024-03-26 08:00	2024-03-26 23:00	16 h	1,575
Moderate	falling	2024-03-27 00:00	2024-04-01 01:00	122 h (5.1 d)	891

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.16
preceding 3 h	0.41
preceding 6 h	0.70
preceding 12 h	0.92
preceding 24 h	0.94
preceding 48 h	0.94
preceding 72 h	0.95

Rain onset → crest0.83 in

Rain over full excursion0.83 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.04	1.04
Beech Creek	50	0.91	0.92
Smith Creek-Buffalo River	87	0.96	0.97
Whiteley Creek-Buffalo River	161	0.89	0.89

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-03-25 10:00	175	2.83
−3 h	2024-03-25 08:00	133	2.65
−6 h	2024-03-25 05:00	114	2.55
−12 h	2024-03-24 23:00	107	2.52
−24 h	2024-03-24 11:00	114	2.55
−48 h	2024-03-23 11:00	129	2.63
−72 h	2024-03-22 11:00	150	2.73

2024-03-14 22:00 CDT · peak Flood 2,285 cfs · 4 dwells · 1.35" rain/24h

Onset (rise crosses 200 cfs)Thu 2024-03-14 22:00 CDT

Peak2024-03-15 04:00 CDT — 2,285 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span133 h (5.5 days)

Baseline flow (min, 72 h pre-onset)118 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2024-03-14 22:00	2024-03-15 01:00	4 h	826
Flood	peak	2024-03-15 03:00	2024-03-15 10:00	8 h	2,285
High	falling	2024-03-15 11:00	2024-03-16 00:00	14 h	1,502
Moderate	falling	2024-03-16 01:00	2024-03-20 10:00	106 h (4.4 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.15
preceding 3 h	0.50
preceding 6 h	1.32
preceding 12 h	1.32
preceding 24 h	1.35
preceding 48 h	1.35
preceding 72 h	1.35

Rain onset → crest0.34 in

Rain over full excursion0.38 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.72	1.72
Beech Creek	50	1.40	1.40
Smith Creek-Buffalo River	87	1.26	1.26
Whiteley Creek-Buffalo River	161	1.18	1.18

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-03-14 21:00	199	2.92
−3 h	2024-03-14 19:00	153	2.74
−6 h	2024-03-14 16:00	123	2.61
−12 h	2024-03-14 10:00	122	2.61
−24 h	2024-03-13 22:00	128	2.63
−48 h	2024-03-12 22:00	142	2.69
−72 h	2024-03-11 22:00	156	2.75

2024-03-09 08:00 CST · peak Moderate 236 cfs · 1 dwells · 0.45" rain/24h

Onset (rise crosses 200 cfs)Sat 2024-03-09 08:00 CST

Peak2024-03-09 16:00 CST — 236 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span26 h (1.1 days)

Baseline flow (min, 72 h pre-onset)104 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2024-03-09 08:00	2024-03-10 10:00	26 h	236

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.04
preceding 6 h	0.11
preceding 12 h	0.30
preceding 24 h	0.45
preceding 48 h	1.13
preceding 72 h	1.13

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.66	1.46
Beech Creek	50	0.40	1.05
Smith Creek-Buffalo River	87	0.43	1.17
Whiteley Creek-Buffalo River	161	0.36	0.94

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-03-09 07:00	195	2.91
−3 h	2024-03-09 05:00	176	2.83
−6 h	2024-03-09 02:00	134	2.66
−12 h	2024-03-08 20:00	127	2.62
−24 h	2024-03-08 08:00	116	2.56
−48 h	2024-03-07 08:00	105	2.51
−72 h	2024-03-06 08:00	122	2.60

2024-02-04 01:00 CST · peak High 1,408 cfs · 3 dwells · 1.06" rain/24h

Onset (rise crosses 200 cfs)Sun 2024-02-04 01:00 CST

Peak2024-02-04 09:00 CST — 1,408 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span151 h (6.3 days)

Baseline flow (min, 72 h pre-onset)154 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2024-02-04 01:00	2024-02-04 05:00	5 h	675
High	peak	2024-02-04 06:00	2024-02-05 08:00	27 h	1,408
Moderate	falling	2024-02-05 09:00	2024-02-10 07:00	119 h (5.0 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.11
preceding 3 h	0.29
preceding 6 h	0.55
preceding 12 h	0.96
preceding 24 h	1.06
preceding 48 h	1.06
preceding 72 h	1.06

Rain onset → crest0.30 in

Rain over full excursion0.33 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.29	1.29
Beech Creek	50	1.13	1.13
Smith Creek-Buffalo River	87	1.13	1.13
Whiteley Creek-Buffalo River	161	0.87	0.87

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-02-04 00:00	189	2.89
−3 h	2024-02-03 22:00	170	2.81
−6 h	2024-02-03 19:00	160	2.77
−12 h	2024-02-03 13:00	154	2.75
−24 h	2024-02-03 01:00	166	2.79
−48 h	2024-02-02 01:00	195	2.91
−72 h	2024-02-01 01:00	254	3.11

2024-01-22 23:00 CST · peak Flood 2,060 cfs · 7 dwells · 1.16" rain/24h

Onset (rise crosses 200 cfs)Mon 2024-01-22 23:00 CST

Peak2024-01-23 02:00 CST — 2,060 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span239 h (10.0 days)

Baseline flow (min, 72 h pre-onset)35 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2024-01-23 01:00	2024-01-23 07:00	7 h	2,060
High	falling	2024-01-23 08:00	2024-01-24 17:00	34 h	1,508
Moderate	falling	2024-01-24 18:00	2024-01-25 13:00	20 h	885
High	falling	2024-01-25 14:00	2024-01-26 02:00	13 h	1,208
Moderate	falling	2024-01-26 03:00	2024-01-27 12:00	34 h	898
High	falling	2024-01-27 13:00	2024-01-28 06:00	18 h	1,362
Moderate	falling	2024-01-28 07:00	2024-02-01 21:00	111 h (4.6 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.14
preceding 6 h	0.42
preceding 12 h	0.82
preceding 24 h	1.16
preceding 48 h	1.17
preceding 72 h	1.17

Rain onset → crest0.00 in

Rain over full excursion2.09 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.26	1.26
Beech Creek	50	1.06	1.06
Smith Creek-Buffalo River	87	1.09	1.09
Whiteley Creek-Buffalo River	161	1.18	1.18

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-01-22 22:00	169	2.89
−3 h	2024-01-22 20:00	74	2.44
−6 h	2024-01-22 17:00	46	2.24
−12 h	2024-01-22 11:00	39	2.17
−24 h	2024-01-21 23:00	35	2.14
−48 h	2024-01-20 23:00	37	2.15
−72 h	2024-01-19 23:00	46	2.24

2024-01-09 02:00 CST · peak Moderate 463 cfs · 1 dwells · 0.93" rain/24h

Onset (rise crosses 200 cfs)Tue 2024-01-09 02:00 CST

Peak2024-01-09 05:00 CST — 463 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span26 h (1.1 days)

Baseline flow (min, 72 h pre-onset)21 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2024-01-09 02:00	2024-01-10 03:00	26 h	463

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.03
preceding 12 h	0.54
preceding 24 h	0.93
preceding 48 h	0.93
preceding 72 h	0.93

Rain onset → crest0.02 in

Rain over full excursion0.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.06	1.06
Beech Creek	50	0.94	0.94
Smith Creek-Buffalo River	87	0.97	0.97
Whiteley Creek-Buffalo River	161	0.82	0.82

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2024-01-09 01:00	172	2.96
−3 h	2024-01-08 23:00	99	2.61
−6 h	2024-01-08 20:00	71	2.44
−12 h	2024-01-08 14:00	26	2.02
−24 h	2024-01-08 02:00	21	1.96
−48 h	2024-01-07 02:00	22	1.97
−72 h	2024-01-06 02:00	23	1.98

2023-12-25 07:00 CST · peak Moderate 739 cfs · 1 dwells · 0.99" rain/24h

Onset (rise crosses 200 cfs)Mon 2023-12-25 07:00 CST

Peak2023-12-25 09:00 CST — 739 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span23 h (1.0 days)

Baseline flow (min, 72 h pre-onset)10 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2023-12-25 07:00	2023-12-26 05:00	23 h	739

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.10
preceding 12 h	0.57
preceding 24 h	0.99
preceding 48 h	1.01
preceding 72 h	1.04

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.28	1.34
Beech Creek	50	1.09	1.13
Smith Creek-Buffalo River	87	1.10	1.14
Whiteley Creek-Buffalo River	161	0.73	0.79

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-12-25 06:00	48	2.26
−3 h	2023-12-25 04:00	40	2.18
−6 h	2023-12-25 01:00	20	1.94
−12 h	2023-12-24 19:00	12	1.80
−24 h	2023-12-24 07:00	10	1.76
−48 h	2023-12-23 07:00	10	1.76
−72 h	2023-12-22 07:00	11	1.77

2023-05-10 20:00 CDT · peak Flood 2,975 cfs · 4 dwells · 1.19" rain/24h

Onset (rise crosses 200 cfs)Wed 2023-05-10 20:00 CDT

Peak2023-05-11 11:00 CDT — 2,975 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span142 h (5.9 days)

Baseline flow (min, 72 h pre-onset)51 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2023-05-10 20:00	2023-05-11 01:00	6 h	823
Flood	peak	2023-05-11 03:00	2023-05-11 19:00	17 h	2,975
High	falling	2023-05-11 20:00	2023-05-12 13:00	18 h	1,598
Moderate	falling	2023-05-12 14:00	2023-05-16 17:00	100 h (4.2 d)	882

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.06
preceding 3 h	0.08
preceding 6 h	0.79
preceding 12 h	0.81
preceding 24 h	1.19
preceding 48 h	1.19
preceding 72 h	1.19

Rain onset → crest1.14 in

Rain over full excursion1.94 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.97	0.97
Beech Creek	50	0.99	0.99
Smith Creek-Buffalo River ★	87	2.02	2.02
Whiteley Creek-Buffalo River	161	0.93	0.93

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-05-10 19:00	68	2.17
−3 h	2023-05-10 17:00	68	2.17
−6 h	2023-05-10 14:00	62	2.12
−12 h	2023-05-10 08:00	61	2.12
−24 h	2023-05-09 20:00	51	2.04
−48 h	2023-05-08 20:00	57	2.09
−72 h	2023-05-07 20:00	65	2.15

2023-03-02 23:00 CST · peak Flood 8,135 cfs · 7 dwells · 0.87" rain/24h

Onset (rise crosses 200 cfs)Thu 2023-03-02 23:00 CST

Peak2023-03-24 18:00 CDT — 8,135 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span881 h (36.7 days)

Baseline flow (min, 72 h pre-onset)115 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	rising	2023-03-03 02:00	2023-03-04 02:00	25 h	6,005
High	rising	2023-03-04 03:00	2023-03-05 01:00	23 h	1,580
Moderate	rising	2023-03-05 02:00	2023-03-16 08:00	270 h (11.2 d)	899
Moderate	rising	2023-03-16 14:00	2023-03-24 06:00	185 h (7.7 d)	788
Flood	peak	2023-03-24 08:00	2023-03-25 12:00	29 h	8,135
High	falling	2023-03-25 13:00	2023-03-26 12:00	24 h	1,588
Moderate	falling	2023-03-26 13:00	2023-04-08 16:00	316 h (13.2 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.19
preceding 3 h	0.55
preceding 6 h	0.86
preceding 12 h	0.87
preceding 24 h	0.87
preceding 48 h	0.87
preceding 72 h	0.87

Rain onset → crest5.32 in

Rain over full excursion6.93 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.02	1.02
Beech Creek	50	0.83	0.83
Smith Creek-Buffalo River	87	0.90	0.90
Whiteley Creek-Buffalo River	161	0.77	0.77

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-03-02 22:00	161	2.67
−3 h	2023-03-02 20:00	124	2.50
−6 h	2023-03-02 17:00	115	2.46
−12 h	2023-03-02 11:00	116	2.46
−24 h	2023-03-01 23:00	120	2.48
−48 h	2023-02-28 23:00	126	2.51
−72 h	2023-02-27 23:00	145	2.60

2023-02-08 02:00 CST · peak Flood 4,978 cfs · 6 dwells · 0.50" rain/24h

Onset (rise crosses 200 cfs)Wed 2023-02-08 02:00 CST

Peak2023-02-08 20:00 CST — 4,978 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span371 h (15.5 days)

Baseline flow (min, 72 h pre-onset)169 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2023-02-08 02:00	2023-02-08 07:00	6 h	897
Flood	peak	2023-02-08 11:00	2023-02-09 13:00	27 h	4,978
High	falling	2023-02-09 14:00	2023-02-10 11:00	22 h	1,598
Moderate	falling	2023-02-10 12:00	2023-02-16 05:00	138 h (5.8 d)	897
High	falling	2023-02-16 06:00	2023-02-16 10:00	5 h	964
Moderate	falling	2023-02-16 11:00	2023-02-23 12:00	170 h (7.1 d)	884

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.07
preceding 3 h	0.25
preceding 6 h	0.35
preceding 12 h	0.44
preceding 24 h	0.50
preceding 48 h	0.50
preceding 72 h	0.50

Rain onset → crest1.50 in

Rain over full excursion2.63 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.69	0.69
Beech Creek	50	0.51	0.51
Smith Creek-Buffalo River	87	0.50	0.50
Whiteley Creek-Buffalo River	161	0.38	0.38

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-02-08 01:00	194	2.80
−3 h	2023-02-07 23:00	180	2.74
−6 h	2023-02-07 20:00	175	2.72
−12 h	2023-02-07 14:00	171	2.71
−24 h	2023-02-07 02:00	174	2.72
−48 h	2023-02-06 02:00	181	2.75
−72 h	2023-02-05 02:00	185	2.76

2023-01-28 21:00 CST · peak Moderate 424 cfs · 1 dwells · 0.00" rain/24h

Onset (rise crosses 200 cfs)Sat 2023-01-28 21:00 CST

Peak2023-01-29 23:00 CST — 424 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span100 h (4.2 days)

Baseline flow (min, 72 h pre-onset)83 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2023-01-28 21:00	2023-02-02 00:00	100 h (4.2 d)	424

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.00
preceding 24 h	0.00
preceding 48 h	0.00
preceding 72 h	0.00

Rain onset → crest0.00 in

Rain over full excursion0.39 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.00	0.00
Beech Creek	50	0.00	0.00
Smith Creek-Buffalo River	87	0.00	0.00
Whiteley Creek-Buffalo River	161	0.00	0.00

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-01-28 20:00	189	2.78
−3 h	2023-01-28 18:00	176	2.73
−6 h	2023-01-28 15:00	158	2.65
−12 h	2023-01-28 09:00	150	2.62
−24 h	2023-01-27 21:00	108	2.41
−48 h	2023-01-26 21:00	86	2.29
−72 h	2023-01-25 21:00	90	2.31

2023-01-03 01:00 CST · peak Moderate 823 cfs · 1 dwells · 1.14" rain/24h

Onset (rise crosses 200 cfs)Tue 2023-01-03 01:00 CST

Peak2023-01-03 09:00 CST — 823 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span76 h (3.2 days)

Baseline flow (min, 72 h pre-onset)49 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2023-01-03 01:00	2023-01-06 04:00	76 h (3.2 d)	823

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.16
preceding 6 h	0.25
preceding 12 h	1.14
preceding 24 h	1.14
preceding 48 h	1.14
preceding 72 h	1.14

Rain onset → crest0.13 in

Rain over full excursion0.13 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.39	1.39
Beech Creek	50	1.16	1.16
Smith Creek-Buffalo River ★	87	1.41	1.41
Whiteley Creek-Buffalo River	161	0.84	0.84

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2023-01-03 00:00	158	2.65
−3 h	2023-01-02 22:00	96	2.35
−6 h	2023-01-02 19:00	63	2.13
−12 h	2023-01-02 13:00	49	2.02
−24 h	2023-01-02 01:00	50	2.03
−48 h	2023-01-01 01:00	52	2.05
−72 h	2022-12-31 01:00	55	2.07

2022-12-08 04:00 CST · peak Flood 2,402 cfs · 7 dwells · 0.93" rain/24h

Onset (rise crosses 200 cfs)Thu 2022-12-08 04:00 CST

Peak2022-12-08 12:00 CST — 2,402 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span247 h (10.3 days)

Baseline flow (min, 72 h pre-onset)59 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2022-12-08 09:00	2022-12-08 17:00	9 h	2,402
High	falling	2022-12-08 18:00	2022-12-09 06:00	13 h	1,550
Moderate	falling	2022-12-09 07:00	2022-12-10 08:00	26 h	898
High	falling	2022-12-10 09:00	2022-12-11 07:00	23 h	1,618
Moderate	falling	2022-12-11 08:00	2022-12-13 16:00	57 h (2.4 d)	887
High	falling	2022-12-13 17:00	2022-12-14 12:00	20 h	1,525
Moderate	falling	2022-12-14 13:00	2022-12-18 10:00	94 h (3.9 d)	876

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.15
preceding 3 h	0.26
preceding 6 h	0.60
preceding 12 h	0.93
preceding 24 h	0.93
preceding 48 h	0.93
preceding 72 h	0.93

Rain onset → crest0.68 in

Rain over full excursion2.17 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.04	1.04
Beech Creek	50	0.96	0.96
Smith Creek-Buffalo River	87	0.91	0.91
Whiteley Creek-Buffalo River	161	0.86	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-12-08 03:00	150	2.62
−3 h	2022-12-08 01:00	93	2.33
−6 h	2022-12-07 22:00	66	2.15
−12 h	2022-12-07 16:00	60	2.11
−24 h	2022-12-07 04:00	61	2.12
−48 h	2022-12-06 04:00	67	2.16
−72 h	2022-12-05 04:00	69	2.18

2022-11-26 21:00 CST · peak High 1,548 cfs · 2 dwells · 0.50" rain/24h

Onset (rise crosses 200 cfs)Sat 2022-11-26 21:00 CST

Peak2022-11-27 01:00 CST — 1,548 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span71 h (3.0 days)

Baseline flow (min, 72 h pre-onset)22 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2022-11-26 23:00	2022-11-27 14:00	16 h	1,548
Moderate	falling	2022-11-27 15:00	2022-11-29 19:00	53 h (2.2 d)	876

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.29
preceding 6 h	0.46
preceding 12 h	0.50
preceding 24 h	0.50
preceding 48 h	0.50
preceding 72 h	1.44

Rain onset → crest0.11 in

Rain over full excursion0.13 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.68	1.68
Beech Creek	50	0.50	1.42
Smith Creek-Buffalo River	87	0.53	1.43
Whiteley Creek-Buffalo River	161	0.38	1.32

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-11-26 20:00	191	2.78
−3 h	2022-11-26 18:00	100	2.37
−6 h	2022-11-26 15:00	91	2.32
−12 h	2022-11-26 09:00	94	2.34
−24 h	2022-11-25 21:00	102	2.38
−48 h	2022-11-24 21:00	76	2.23
−72 h	2022-11-23 21:00	22	1.73

2022-11-04 21:00 CDT · peak Flood 2,002 cfs · 2 dwells · 1.33" rain/24h

Onset (rise crosses 200 cfs)Fri 2022-11-04 21:00 CDT

Peak2022-11-04 22:00 CDT — 2,002 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span30 h (1.2 days)

Baseline flow (min, 72 h pre-onset)19 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2022-11-04 21:00	2022-11-05 02:00	6 h	2,002
Moderate	falling	2022-11-05 03:00	2022-11-06 01:00	24 h	847

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	1.04
preceding 3 h	1.31
preceding 6 h	1.33
preceding 12 h	1.33
preceding 24 h	1.33
preceding 48 h	1.33
preceding 72 h	1.33

Rain onset → crest0.14 in

Rain over full excursion0.15 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.41	1.41
Beech Creek ★	50	1.57	1.57
Smith Creek-Buffalo River	87	1.24	1.24
Whiteley Creek-Buffalo River	161	1.27	1.27

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-11-04 20:00	75	2.26
−3 h	2022-11-04 18:00	19	1.85
−6 h	2022-11-04 15:00	19	1.86
−12 h	2022-11-04 09:00	20	1.87
−24 h	2022-11-03 21:00	21	1.89
−48 h	2022-11-02 21:00	24	1.92
−72 h	2022-11-01 21:00	30	2.00

2022-07-30 09:00 CDT · peak Flood 2,760 cfs · 1 dwells · 1.98" rain/24h

Onset (rise crosses 200 cfs)Sat 2022-07-30 09:00 CDT

Peak2022-07-30 11:00 CDT — 2,760 cfs (Flood)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span15 h (0.6 days)

Baseline flow (min, 72 h pre-onset)6 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	falling	2022-07-30 16:00	2022-07-30 23:00	8 h	851

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.77
preceding 3 h	1.54
preceding 6 h	1.78
preceding 12 h	1.78
preceding 24 h	1.98
preceding 48 h	3.05
preceding 72 h	3.81

Rain onset → crest1.09 in

Rain over full excursion1.51 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.27	2.69
Beech Creek	50	2.42	3.75
Smith Creek-Buffalo River	87	2.00	3.20
Whiteley Creek-Buffalo River ★	161	2.23	4.81

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-07-30 08:00	74	2.27
−3 h	2022-07-30 06:00	15	1.75
−6 h	2022-07-30 03:00	11	1.68
−12 h	2022-07-29 21:00	12	1.69
−24 h	2022-07-29 09:00	16	1.76
−48 h	2022-07-28 09:00	11	1.67
−72 h	2022-07-27 09:00	6	1.53

2022-06-01 23:00 CDT · peak Moderate 812 cfs · 1 dwells · 1.08" rain/24h

Onset (rise crosses 200 cfs)Wed 2022-06-01 23:00 CDT

Peak2022-06-02 00:00 CDT — 812 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span27 h (1.1 days)

Baseline flow (min, 72 h pre-onset)95 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2022-06-01 23:00	2022-06-03 01:00	27 h	812

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.43
preceding 12 h	1.06
preceding 24 h	1.08
preceding 48 h	1.08
preceding 72 h	1.08

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.46	1.46
Beech Creek	50	1.24	1.24
Smith Creek-Buffalo River ★	87	1.74	1.74
Whiteley Creek-Buffalo River	161	0.47	0.47

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-06-01 22:00	194	2.83
−3 h	2022-06-01 20:00	99	2.51
−6 h	2022-06-01 17:00	102	2.53
−12 h	2022-06-01 11:00	98	2.50
−24 h	2022-05-31 23:00	111	2.58
−48 h	2022-05-30 23:00	143	2.72
−72 h	2022-05-29 23:00	192	2.93

2022-05-24 14:00 CDT · peak Flood 5,208 cfs · 3 dwells · 0.54" rain/24h

Onset (rise crosses 200 cfs)Tue 2022-05-24 14:00 CDT

Peak2022-05-24 22:00 CDT — 5,208 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span128 h (5.3 days)

Baseline flow (min, 72 h pre-onset)93 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2022-05-24 16:00	2022-05-25 21:00	30 h	5,208
High	falling	2022-05-25 22:00	2022-05-26 18:00	21 h	1,598
Moderate	falling	2022-05-26 19:00	2022-05-29 21:00	75 h (3.1 d)	880

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.31
preceding 3 h	0.45
preceding 6 h	0.45
preceding 12 h	0.45
preceding 24 h	0.54
preceding 48 h	0.86
preceding 72 h	2.29

Rain onset → crest0.91 in

Rain over full excursion1.31 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.56	2.09
Beech Creek	50	0.40	2.49
Smith Creek-Buffalo River ★	87	0.61	2.63
Whiteley Creek-Buffalo River	161	0.54	2.16

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-05-24 13:00	197	2.95
−3 h	2022-05-24 11:00	193	2.94
−6 h	2022-05-24 08:00	193	2.94
−12 h	2022-05-24 02:00	214	3.01
−24 h	2022-05-23 14:00	152	2.77
−48 h	2022-05-22 14:00	335	3.37
−72 h	2022-05-21 14:00	77	2.37

2022-05-23 20:00 CDT · peak Moderate 228 cfs · 1 dwells · 0.41" rain/24h

Onset (rise crosses 200 cfs)Mon 2022-05-23 20:00 CDT

Peak2022-05-23 23:00 CDT — 228 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span9 h (0.4 days)

Baseline flow (min, 72 h pre-onset)74 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2022-05-23 20:00	2022-05-24 04:00	9 h	228

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.09
preceding 12 h	0.41
preceding 24 h	0.41
preceding 48 h	0.42
preceding 72 h	2.20

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.36	1.98
Beech Creek ★	50	0.55	2.51
Smith Creek-Buffalo River	87	0.53	2.47
Whiteley Creek-Buffalo River	161	0.34	2.08

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-05-23 19:00	198	2.96
−3 h	2022-05-23 17:00	168	2.84
−6 h	2022-05-23 14:00	152	2.77
−12 h	2022-05-23 08:00	162	2.81
−24 h	2022-05-22 20:00	224	3.04
−48 h	2022-05-21 20:00	1,041	4.72
−72 h	2022-05-20 20:00	87	2.44

2022-05-21 16:00 CDT · peak High 1,482 cfs · 2 dwells · 1.63" rain/24h

Onset (rise crosses 200 cfs)Sat 2022-05-21 16:00 CDT

Peak2022-05-21 18:00 CDT — 1,482 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span32 h (1.3 days)

Baseline flow (min, 72 h pre-onset)74 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2022-05-21 17:00	2022-05-21 20:00	4 h	1,482
Moderate	falling	2022-05-21 21:00	2022-05-22 23:00	27 h	881

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.87
preceding 3 h	1.28
preceding 6 h	1.28
preceding 12 h	1.63
preceding 24 h	1.63
preceding 48 h	1.63
preceding 72 h	1.64

Rain onset → crest0.08 in

Rain over full excursion0.16 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.31	1.32
Beech Creek ★	50	1.80	1.80
Smith Creek-Buffalo River	87	1.73	1.74
Whiteley Creek-Buffalo River	161	1.70	1.71

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-05-21 15:00	93	2.47
−3 h	2022-05-21 13:00	77	2.37
−6 h	2022-05-21 10:00	81	2.40
−12 h	2022-05-21 04:00	76	2.36
−24 h	2022-05-20 16:00	91	2.46
−48 h	2022-05-19 16:00	118	2.61
−72 h	2022-05-18 16:00	164	2.82

2022-05-15 14:00 CDT · peak Flood 3,990 cfs · 3 dwells · 2.83" rain/24h

Onset (rise crosses 200 cfs)Sun 2022-05-15 14:00 CDT

Peak2022-05-15 15:00 CDT — 3,990 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span60 h (2.5 days)

Baseline flow (min, 72 h pre-onset)82 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2022-05-15 15:00	2022-05-15 20:00	6 h	3,990
High	falling	2022-05-15 21:00	2022-05-16 03:00	7 h	1,588
Moderate	falling	2022-05-16 04:00	2022-05-18 01:00	46 h	896

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	1.34
preceding 3 h	1.79
preceding 6 h	1.94
preceding 12 h	2.09
preceding 24 h	2.83
preceding 48 h	2.86
preceding 72 h	2.86

Rain onset → crest0.10 in

Rain over full excursion0.16 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	2.14	2.15
Beech Creek ★	50	3.68	3.72
Smith Creek-Buffalo River	87	3.20	3.27
Whiteley Creek-Buffalo River	161	2.76	2.77

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-05-15 13:00	166	2.81
−3 h	2022-05-15 11:00	83	2.42
−6 h	2022-05-15 08:00	85	2.43
−12 h	2022-05-15 02:00	84	2.41
−24 h	2022-05-14 14:00	86	2.43
−48 h	2022-05-13 14:00	108	2.56
−72 h	2022-05-12 14:00	140	2.71

2022-05-02 11:00 CDT · peak Flood 9,212 cfs · 7 dwells · 0.52" rain/24h

Onset (rise crosses 200 cfs)Mon 2022-05-02 11:00 CDT

Peak2022-05-03 03:00 CDT — 9,212 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span212 h (8.8 days)

Baseline flow (min, 72 h pre-onset)162 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2022-05-02 11:00	2022-05-02 16:00	6 h	797
Flood	peak	2022-05-02 18:00	2022-05-03 19:00	26 h	9,212
High	falling	2022-05-03 20:00	2022-05-04 14:00	19 h	1,548
Moderate	falling	2022-05-04 15:00	2022-05-05 04:00	14 h	880
Flood	falling	2022-05-05 06:00	2022-05-06 11:00	30 h	2,882
High	falling	2022-05-06 12:00	2022-05-07 11:00	24 h	1,592
Moderate	falling	2022-05-07 12:00	2022-05-11 06:00	91 h (3.8 d)	883

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.03
preceding 3 h	0.21
preceding 6 h	0.52
preceding 12 h	0.52
preceding 24 h	0.52
preceding 48 h	0.52
preceding 72 h	0.53

Rain onset → crest1.40 in

Rain over full excursion3.09 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.79	0.81
Beech Creek	50	0.44	0.45
Smith Creek-Buffalo River	87	0.58	0.58
Whiteley Creek-Buffalo River	161	0.36	0.38

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-05-02 10:00	193	2.93
−3 h	2022-05-02 08:00	176	2.87
−6 h	2022-05-02 05:00	164	2.82
−12 h	2022-05-01 23:00	172	2.85
−24 h	2022-05-01 11:00	195	2.94
−48 h	2022-04-30 11:00	269	3.19
−72 h	2022-04-29 11:00	375	3.48

2022-04-11 09:00 CDT · peak Flood 7,155 cfs · 7 dwells · 0.55" rain/24h

Onset (rise crosses 200 cfs)Mon 2022-04-11 09:00 CDT

Peak2022-04-25 05:00 CDT — 7,155 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span480 h (20.0 days)

Baseline flow (min, 72 h pre-onset)186 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2022-04-11 09:00	2022-04-13 12:00	52 h (2.2 d)	674
Flood	rising	2022-04-13 14:00	2022-04-13 20:00	7 h	1,982
High	rising	2022-04-13 21:00	2022-04-14 12:00	16 h	1,585
Moderate	rising	2022-04-14 13:00	2022-04-24 23:00	251 h (10.5 d)	875
Flood	peak	2022-04-25 01:00	2022-04-25 22:00	22 h	7,155
High	falling	2022-04-25 23:00	2022-04-26 18:00	20 h	1,552
Moderate	falling	2022-04-26 19:00	2022-05-01 08:00	110 h (4.6 d)	886

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.42
preceding 3 h	0.52
preceding 6 h	0.55
preceding 12 h	0.55
preceding 24 h	0.55
preceding 48 h	0.55
preceding 72 h	0.55

Rain onset → crest3.97 in

Rain over full excursion4.19 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.55	0.55
Beech Creek ★	50	0.67	0.67
Smith Creek-Buffalo River	87	0.44	0.44
Whiteley Creek-Buffalo River	161	0.57	0.57

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-04-11 08:00	193	2.93
−3 h	2022-04-11 06:00	187	2.90
−6 h	2022-04-11 03:00	188	2.91
−12 h	2022-04-10 21:00	194	2.94
−24 h	2022-04-10 09:00	205	2.97
−48 h	2022-04-09 09:00	241	3.10
−72 h	2022-04-08 09:00	290	3.25

2022-03-30 07:00 CDT · peak Flood 6,190 cfs · 3 dwells · 0.22" rain/24h

Onset (rise crosses 200 cfs)Wed 2022-03-30 07:00 CDT

Peak2022-03-30 12:00 CDT — 6,190 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span276 h (11.5 days)

Baseline flow (min, 72 h pre-onset)190 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2022-03-30 09:00	2022-03-31 08:00	24 h	6,190
High	falling	2022-03-31 09:00	2022-04-01 07:00	23 h	1,555
Moderate	falling	2022-04-01 08:00	2022-04-10 18:00	227 h (9.5 d)	881

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.09
preceding 3 h	0.15
preceding 6 h	0.22
preceding 12 h	0.22
preceding 24 h	0.22
preceding 48 h	0.22
preceding 72 h	0.22

Rain onset → crest0.82 in

Rain over full excursion2.24 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.30	0.30
Beech Creek	50	0.28	0.28
Smith Creek-Buffalo River	87	0.24	0.24
Whiteley Creek-Buffalo River	161	0.16	0.16

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-03-30 06:00	194	2.79
−3 h	2022-03-30 04:00	192	2.79
−6 h	2022-03-30 01:00	192	2.79
−12 h	2022-03-29 19:00	196	2.81
−24 h	2022-03-29 07:00	205	2.84
−48 h	2022-03-28 07:00	240	2.96
−72 h	2022-03-27 07:00	285	3.10

2022-03-18 11:00 CDT · peak High 1,480 cfs · 3 dwells · 0.62" rain/24h

Onset (rise crosses 200 cfs)Fri 2022-03-18 11:00 CDT

Peak2022-03-22 06:00 CDT — 1,480 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span270 h (11.2 days)

Baseline flow (min, 72 h pre-onset)116 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2022-03-18 11:00	2022-03-22 01:00	87 h (3.6 d)	657
High	peak	2022-03-22 02:00	2022-03-23 04:00	27 h	1,480
Moderate	falling	2022-03-23 05:00	2022-03-29 16:00	156 h (6.5 d)	889

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.09
preceding 6 h	0.43
preceding 12 h	0.55
preceding 24 h	0.62
preceding 48 h	0.62
preceding 72 h	0.62

Rain onset → crest0.92 in

Rain over full excursion1.05 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.83	0.83
Beech Creek	50	0.72	0.72
Smith Creek-Buffalo River	87	0.47	0.47
Whiteley Creek-Buffalo River	161	0.55	0.55

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-03-18 10:00	186	2.77
−3 h	2022-03-18 08:00	155	2.64
−6 h	2022-03-18 05:00	125	2.50
−12 h	2022-03-17 23:00	116	2.46
−24 h	2022-03-17 11:00	116	2.46
−48 h	2022-03-16 11:00	133	2.54
−72 h	2022-03-15 11:00	148	2.61

2022-02-17 10:00 CST · peak Flood 2,540 cfs · 6 dwells · 0.60" rain/24h

Onset (rise crosses 200 cfs)Thu 2022-02-17 10:00 CST

Peak2022-02-22 08:00 CST — 2,540 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span560 h (23.3 days)

Baseline flow (min, 72 h pre-onset)113 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2022-02-17 10:00	2022-02-22 03:00	114 h (4.8 d)	882
Flood	peak	2022-02-22 05:00	2022-02-22 14:00	10 h	2,540
High	falling	2022-02-22 15:00	2022-02-23 14:00	24 h	1,575
Moderate	falling	2022-02-23 15:00	2022-03-07 03:00	277 h (11.5 d)	896
High	falling	2022-03-07 04:00	2022-03-07 10:00	7 h	1,004
Moderate	falling	2022-03-07 11:00	2022-03-12 17:00	127 h (5.3 d)	896

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.26
preceding 6 h	0.38
preceding 12 h	0.53
preceding 24 h	0.60
preceding 48 h	0.60
preceding 72 h	0.60

Rain onset → crest0.79 in

Rain over full excursion2.48 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.71	0.71
Beech Creek	50	0.60	0.60
Smith Creek-Buffalo River	87	0.69	0.69
Whiteley Creek-Buffalo River	161	0.50	0.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-02-17 09:00	186	2.77
−3 h	2022-02-17 07:00	133	2.54
−6 h	2022-02-17 04:00	125	2.50
−12 h	2022-02-16 22:00	114	2.45
−24 h	2022-02-16 10:00	115	2.46
−48 h	2022-02-15 10:00	132	2.54
−72 h	2022-02-14 10:00	146	2.60

2022-02-08 22:00 CST · peak Moderate 258 cfs · 1 dwells · 0.00" rain/24h

Onset (rise crosses 200 cfs)Tue 2022-02-08 22:00 CST

Peak2022-02-10 04:00 CST — 258 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span84 h (3.5 days)

Baseline flow (min, 72 h pre-onset)91 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2022-02-08 22:00	2022-02-12 09:00	84 h (3.5 d)	258

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.00
preceding 24 h	0.00
preceding 48 h	0.00
preceding 72 h	0.00

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.00	0.00
Beech Creek	50	0.00	0.00
Smith Creek-Buffalo River	87	0.00	0.00
Whiteley Creek-Buffalo River	161	0.00	0.00

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-02-08 21:00	197	2.81
−3 h	2022-02-08 19:00	185	2.77
−6 h	2022-02-08 16:00	178	2.74
−12 h	2022-02-08 10:00	178	2.74
−24 h	2022-02-07 22:00	154	2.64
−48 h	2022-02-06 22:00	121	2.49
−72 h	2022-02-05 22:00	90	2.32

2022-01-19 03:00 CST · peak Moderate 297 cfs · 1 dwells · 0.00" rain/24h

Onset (rise crosses 200 cfs)Wed 2022-01-19 03:00 CST

Peak2022-01-19 14:00 CST — 297 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span70 h (2.9 days)

Baseline flow (min, 72 h pre-onset)78 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2022-01-19 03:00	2022-01-22 00:00	70 h (2.9 d)	297

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.00
preceding 24 h	0.00
preceding 48 h	0.00
preceding 72 h	0.00

Rain onset → crest0.00 in

Rain over full excursion0.21 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.00	0.00
Beech Creek	50	0.00	0.00
Smith Creek-Buffalo River	87	0.00	0.00
Whiteley Creek-Buffalo River	161	0.00	0.00

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-01-19 02:00	188	2.77
−3 h	2022-01-19 00:00	160	2.66
−6 h	2022-01-18 21:00	130	2.53
−12 h	2022-01-18 15:00	104	2.40
−24 h	2022-01-18 03:00	92	2.33
−48 h	2022-01-17 03:00	81	2.26
−72 h	2022-01-16 03:00	88	2.30

2022-01-01 10:00 CST · peak Flood 1,872 cfs · 3 dwells · 1.00" rain/24h

Onset (rise crosses 200 cfs)Sat 2022-01-01 10:00 CST

Peak2022-01-01 15:00 CST — 1,872 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span109 h (4.5 days)

Baseline flow (min, 72 h pre-onset)55 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2022-01-01 13:00	2022-01-01 19:00	7 h	1,872
High	falling	2022-01-01 20:00	2022-01-02 07:00	12 h	1,520
Moderate	falling	2022-01-02 08:00	2022-01-05 22:00	87 h (3.6 d)	836

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.10
preceding 3 h	0.36
preceding 6 h	0.56
preceding 12 h	0.83
preceding 24 h	1.00
preceding 48 h	1.00
preceding 72 h	1.16

Rain onset → crest0.16 in

Rain over full excursion0.17 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.02	1.22
Beech Creek ★	50	1.06	1.26
Smith Creek-Buffalo River	87	0.95	1.11
Whiteley Creek-Buffalo River	161	0.99	1.12

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2022-01-01 09:00	194	2.79
−3 h	2022-01-01 07:00	91	2.32
−6 h	2022-01-01 04:00	67	2.16
−12 h	2021-12-31 22:00	58	2.10
−24 h	2021-12-31 10:00	56	2.08
−48 h	2021-12-30 10:00	62	2.12
−72 h	2021-12-29 10:00	60	2.11

2021-12-17 12:00 CST · peak Flood 2,600 cfs · 5 dwells · 0.82" rain/24h

Onset (rise crosses 200 cfs)Fri 2021-12-17 12:00 CST

Peak2021-12-18 06:00 CST — 2,600 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span102 h (4.2 days)

Baseline flow (min, 72 h pre-onset)19 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2021-12-17 12:00	2021-12-17 15:00	4 h	858
High	rising	2021-12-17 16:00	2021-12-18 02:00	11 h	1,492
Flood	peak	2021-12-18 03:00	2021-12-18 13:00	11 h	2,600
High	falling	2021-12-18 14:00	2021-12-19 00:00	11 h	1,575
Moderate	falling	2021-12-19 01:00	2021-12-21 17:00	65 h (2.7 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.37
preceding 6 h	0.80
preceding 12 h	0.82
preceding 24 h	0.82
preceding 48 h	1.08
preceding 72 h	1.08

Rain onset → crest1.18 in

Rain over full excursion1.18 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.68	0.92
Beech Creek ★	50	0.83	1.27
Smith Creek-Buffalo River	87	0.72	1.05
Whiteley Creek-Buffalo River	161	0.95	1.12

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-12-17 11:00	132	2.58
−3 h	2021-12-17 09:00	54	2.09
−6 h	2021-12-17 06:00	23	1.78
−12 h	2021-12-17 00:00	23	1.78
−24 h	2021-12-16 12:00	21	1.75
−48 h	2021-12-15 12:00	19	1.72
−72 h	2021-12-14 12:00	20	1.74

2021-10-15 08:00 CDT · peak Moderate 552 cfs · 1 dwells · 0.70" rain/24h

Onset (rise crosses 200 cfs)Fri 2021-10-15 08:00 CDT

Peak2021-10-15 19:00 CDT — 552 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span25 h (1.0 days)

Baseline flow (min, 72 h pre-onset)3 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-10-15 08:00	2021-10-16 08:00	25 h	552

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.04
preceding 3 h	0.46
preceding 6 h	0.46
preceding 12 h	0.46
preceding 24 h	0.70
preceding 48 h	2.53
preceding 72 h	2.53

Rain onset → crest0.36 in

Rain over full excursion0.36 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.84	3.07
Beech Creek	50	0.82	2.75
Smith Creek-Buffalo River	87	0.74	2.75
Whiteley Creek-Buffalo River	161	0.57	2.02

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-10-15 07:00	170	2.77
−3 h	2021-10-15 05:00	140	2.65
−6 h	2021-10-15 02:00	148	2.70
−12 h	2021-10-14 20:00	37	2.01
−24 h	2021-10-14 08:00	26	1.91
−48 h	2021-10-13 08:00	3	1.43
−72 h	2021-10-12 08:00	3	1.43

2021-07-17 20:00 CDT · peak Moderate 823 cfs · 1 dwells · 1.37" rain/24h

Onset (rise crosses 200 cfs)Sat 2021-07-17 20:00 CDT

Peak2021-07-17 22:00 CDT — 823 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span15 h (0.6 days)

Baseline flow (min, 72 h pre-onset)7 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-07-17 20:00	2021-07-18 10:00	15 h	823

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.10
preceding 6 h	0.79
preceding 12 h	0.99
preceding 24 h	1.37
preceding 48 h	2.34
preceding 72 h	2.34

Rain onset → crest0.11 in

Rain over full excursion0.40 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.61	2.86
Beech Creek	50	1.92	2.83
Smith Creek-Buffalo River	87	1.67	2.66
Whiteley Creek-Buffalo River	161	0.89	1.71

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-07-17 19:00	67	2.25
−3 h	2021-07-17 17:00	84	2.37
−6 h	2021-07-17 14:00	52	2.12
−12 h	2021-07-17 08:00	30	1.91
−24 h	2021-07-16 20:00	17	1.72
−48 h	2021-07-15 20:00	7	1.52
−72 h	2021-07-14 20:00	8	1.54

2021-06-06 10:00 CDT · peak Moderate 874 cfs · 1 dwells · 0.59" rain/24h

Onset (rise crosses 200 cfs)Sun 2021-06-06 10:00 CDT

Peak2021-06-06 16:00 CDT — 874 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span110 h (4.6 days)

Baseline flow (min, 72 h pre-onset)148 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-06-06 10:00	2021-06-10 23:00	110 h (4.6 d)	874

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.14
preceding 3 h	0.42
preceding 6 h	0.52
preceding 12 h	0.58
preceding 24 h	0.59
preceding 48 h	0.59
preceding 72 h	0.59

Rain onset → crest0.04 in

Rain over full excursion0.70 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.86	0.86
Beech Creek	50	0.60	0.60
Smith Creek-Buffalo River	87	0.72	0.72
Whiteley Creek-Buffalo River	161	0.36	0.36

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-06-06 09:00	193	2.88
−3 h	2021-06-06 07:00	153	2.73
−6 h	2021-06-06 04:00	149	2.71
−12 h	2021-06-05 22:00	153	2.73
−24 h	2021-06-05 10:00	170	2.79
−48 h	2021-06-04 10:00	228	3.01
−72 h	2021-06-03 10:00	341	3.34

2021-05-17 10:00 CDT · peak High 1,595 cfs · 7 dwells · 0.47" rain/24h

Onset (rise crosses 200 cfs)Mon 2021-05-17 10:00 CDT

Peak2021-05-28 01:00 CDT — 1,595 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span444 h (18.5 days)

Baseline flow (min, 72 h pre-onset)70 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2021-05-17 10:00	2021-05-20 16:00	79 h (3.3 d)	653
High	rising	2021-05-20 17:00	2021-05-22 11:00	43 h	1,378
Moderate	rising	2021-05-22 12:00	2021-05-27 21:00	130 h (5.4 d)	884
High	peak	2021-05-27 22:00	2021-05-28 14:00	17 h	1,595
Moderate	falling	2021-05-28 15:00	2021-06-01 08:00	90 h (3.8 d)	894
High	falling	2021-06-01 09:00	2021-06-01 13:00	5 h	1,195
Moderate	falling	2021-06-01 14:00	2021-06-04 21:00	80 h (3.3 d)	882

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.12
preceding 6 h	0.42
preceding 12 h	0.47
preceding 24 h	0.47
preceding 48 h	0.48
preceding 72 h	0.48

Rain onset → crest3.39 in

Rain over full excursion4.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.42	0.42
Beech Creek ★	50	0.61	0.61
Smith Creek-Buffalo River	87	0.42	0.42
Whiteley Creek-Buffalo River	161	0.48	0.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-05-17 09:00	194	2.88
−3 h	2021-05-17 07:00	94	2.42
−6 h	2021-05-17 04:00	71	2.28
−12 h	2021-05-16 22:00	72	2.29
−24 h	2021-05-16 10:00	76	2.31
−48 h	2021-05-15 10:00	85	2.38
−72 h	2021-05-14 10:00	104	2.49

2021-05-11 21:00 CDT · peak Moderate 272 cfs · 1 dwells · 0.41" rain/24h

Onset (rise crosses 200 cfs)Tue 2021-05-11 21:00 CDT

Peak2021-05-12 04:00 CDT — 272 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span17 h (0.7 days)

Baseline flow (min, 72 h pre-onset)120 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-05-11 21:00	2021-05-12 13:00	17 h	272

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.19
preceding 12 h	0.41
preceding 24 h	0.41
preceding 48 h	0.41
preceding 72 h	0.59

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.45	0.61
Beech Creek	50	0.45	0.62
Smith Creek-Buffalo River ★	87	0.44	0.64
Whiteley Creek-Buffalo River	161	0.36	0.54

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-05-11 20:00	184	2.85
−3 h	2021-05-11 18:00	156	2.74
−6 h	2021-05-11 15:00	136	2.65
−12 h	2021-05-11 09:00	124	2.59
−24 h	2021-05-10 21:00	141	2.67
−48 h	2021-05-09 21:00	190	2.87
−72 h	2021-05-08 21:00	234	3.03

2021-04-24 02:00 CDT · peak Flood 13,500 cfs · 9 dwells · 0.73" rain/24h

Onset (rise crosses 200 cfs)Sat 2021-04-24 02:00 CDT

Peak2021-04-29 00:00 CDT — 13,500 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span374 h (15.6 days)

Baseline flow (min, 72 h pre-onset)88 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2021-04-24 02:00	2021-04-24 07:00	6 h	842
High	rising	2021-04-24 08:00	2021-04-25 03:00	20 h	1,328
Moderate	rising	2021-04-25 04:00	2021-04-28 11:00	80 h (3.3 d)	878
Flood	peak	2021-04-28 13:00	2021-04-30 07:00	43 h	13,500
High	falling	2021-04-30 08:00	2021-05-01 08:00	25 h	1,568
Moderate	falling	2021-05-01 09:00	2021-05-04 01:00	65 h (2.7 d)	899
Flood	falling	2021-05-04 04:00	2021-05-04 07:00	4 h	1,658
High	falling	2021-05-04 08:00	2021-05-04 21:00	14 h	1,518
Moderate	falling	2021-05-04 22:00	2021-05-09 15:00	114 h (4.8 d)	885

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.10
preceding 3 h	0.32
preceding 6 h	0.65
preceding 12 h	0.70
preceding 24 h	0.73
preceding 48 h	0.79
preceding 72 h	0.79

Rain onset → crest2.89 in

Rain over full excursion5.60 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.70	0.73
Beech Creek	50	0.71	0.78
Smith Creek-Buffalo River	87	0.73	0.78
Whiteley Creek-Buffalo River ★	161	0.77	0.82

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-04-24 01:00	156	3.08
−3 h	2021-04-23 23:00	101	2.82
−6 h	2021-04-23 20:00	88	2.75
−12 h	2021-04-23 14:00	90	2.75
−24 h	2021-04-23 02:00	92	2.77
−48 h	2021-04-22 02:00	105	2.84
−72 h	2021-04-21 02:00	129	2.96

2021-04-14 08:00 CDT · peak High 1,388 cfs · 2 dwells · 1.00" rain/24h

Onset (rise crosses 200 cfs)Wed 2021-04-14 08:00 CDT

Peak2021-04-14 13:00 CDT — 1,388 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span112 h (4.7 days)

Baseline flow (min, 72 h pre-onset)39 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2021-04-14 11:00	2021-04-14 21:00	11 h	1,388
Moderate	falling	2021-04-14 22:00	2021-04-18 23:00	98 h (4.1 d)	888

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.38
preceding 6 h	0.80
preceding 12 h	0.99
preceding 24 h	1.00
preceding 48 h	1.29
preceding 72 h	1.29

Rain onset → crest0.00 in

Rain over full excursion0.23 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.00	1.30
Beech Creek ★	50	1.08	1.32
Smith Creek-Buffalo River	87	1.05	1.32
Whiteley Creek-Buffalo River	161	0.95	1.27

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-04-14 07:00	170	3.14
−3 h	2021-04-14 05:00	80	2.69
−6 h	2021-04-14 02:00	46	2.43
−12 h	2021-04-13 20:00	40	2.37
−24 h	2021-04-13 08:00	39	2.37
−48 h	2021-04-12 08:00	43	2.40
−72 h	2021-04-11 08:00	51	2.48

2021-03-13 10:00 CST · peak Flood 3,668 cfs · 9 dwells · 0.48" rain/24h

Onset (rise crosses 200 cfs)Sat 2021-03-13 10:00 CST

Peak2021-03-25 17:00 CDT — 3,668 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span451 h (18.8 days)

Baseline flow (min, 72 h pre-onset)84 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2021-03-13 10:00	2021-03-14 20:00	34 h	650
Flood	rising	2021-03-14 22:00	2021-03-15 09:00	12 h	2,200
High	rising	2021-03-15 10:00	2021-03-16 06:00	21 h	1,572
Moderate	rising	2021-03-16 07:00	2021-03-23 07:00	169 h (7.0 d)	899
High	rising	2021-03-23 08:00	2021-03-23 16:00	9 h	1,090
Moderate	rising	2021-03-23 17:00	2021-03-25 04:00	36 h	873
Flood	peak	2021-03-25 06:00	2021-03-26 10:00	29 h	3,668
High	falling	2021-03-26 11:00	2021-03-27 10:00	24 h	1,525
Moderate	falling	2021-03-27 11:00	2021-04-01 05:00	115 h (4.8 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.04
preceding 3 h	0.22
preceding 6 h	0.28
preceding 12 h	0.38
preceding 24 h	0.48
preceding 48 h	0.53
preceding 72 h	0.53

Rain onset → crest2.68 in

Rain over full excursion2.71 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.45	0.52
Beech Creek	50	0.40	0.44
Smith Creek-Buffalo River	87	0.48	0.52
Whiteley Creek-Buffalo River ★	161	0.53	0.57

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-03-13 09:00	180	3.18
−3 h	2021-03-13 07:00	112	2.88
−6 h	2021-03-13 04:00	97	2.80
−12 h	2021-03-12 22:00	91	2.76
−24 h	2021-03-12 10:00	89	2.75
−48 h	2021-03-11 10:00	98	2.80
−72 h	2021-03-10 10:00	108	2.86

2021-02-27 20:00 CST · peak Moderate 708 cfs · 1 dwells · 0.19" rain/24h

Onset (rise crosses 200 cfs)Sat 2021-02-27 20:00 CST

Peak2021-03-01 02:00 CST — 708 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span155 h (6.5 days)

Baseline flow (min, 72 h pre-onset)112 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-02-27 20:00	2021-03-06 06:00	155 h (6.5 d)	708

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.18
preceding 6 h	0.19
preceding 12 h	0.19
preceding 24 h	0.19
preceding 48 h	0.40
preceding 72 h	0.40

Rain onset → crest0.40 in

Rain over full excursion0.53 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.22	0.49
Beech Creek	50	0.21	0.43
Smith Creek-Buffalo River	87	0.22	0.43
Whiteley Creek-Buffalo River	161	0.16	0.33

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-02-27 19:00	195	3.24
−3 h	2021-02-27 17:00	168	3.14
−6 h	2021-02-27 14:00	172	3.15
−12 h	2021-02-27 08:00	180	3.18
−24 h	2021-02-26 20:00	194	3.24
−48 h	2021-02-25 20:00	114	2.89
−72 h	2021-02-24 20:00	136	2.99

2021-01-30 15:00 CST · peak Moderate 483 cfs · 1 dwells · 0.41" rain/24h

Onset (rise crosses 200 cfs)Sat 2021-01-30 15:00 CST

Peak2021-01-31 01:00 CST — 483 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span104 h (4.3 days)

Baseline flow (min, 72 h pre-onset)176 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-01-30 15:00	2021-02-03 22:00	104 h (4.3 d)	483

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.04
preceding 3 h	0.09
preceding 6 h	0.29
preceding 12 h	0.37
preceding 24 h	0.41
preceding 48 h	0.41
preceding 72 h	0.41

Rain onset → crest0.01 in

Rain over full excursion0.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.43	0.43
Beech Creek	50	0.45	0.45
Smith Creek-Buffalo River ★	87	0.45	0.45
Whiteley Creek-Buffalo River	161	0.37	0.37

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-01-30 14:00	198	3.25
−3 h	2021-01-30 12:00	186	3.21
−6 h	2021-01-30 09:00	178	3.17
−12 h	2021-01-30 03:00	176	3.17
−24 h	2021-01-29 15:00	182	3.19
−48 h	2021-01-28 15:00	202	3.27
−72 h	2021-01-27 15:00	256	3.45

2021-01-25 11:00 CST · peak Moderate 723 cfs · 1 dwells · 0.58" rain/24h

Onset (rise crosses 200 cfs)Mon 2021-01-25 11:00 CST

Peak2021-01-25 18:00 CST — 723 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span78 h (3.2 days)

Baseline flow (min, 72 h pre-onset)56 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2021-01-25 11:00	2021-01-28 16:00	78 h (3.2 d)	723

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.12
preceding 6 h	0.44
preceding 12 h	0.54
preceding 24 h	0.58
preceding 48 h	0.60
preceding 72 h	0.60

Rain onset → crest0.00 in

Rain over full excursion0.11 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.72	0.72
Beech Creek	50	0.55	0.57
Smith Creek-Buffalo River	87	0.52	0.53
Whiteley Creek-Buffalo River	161	0.53	0.59

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2021-01-25 10:00	165	3.12
−3 h	2021-01-25 08:00	96	2.79
−6 h	2021-01-25 05:00	62	2.57
−12 h	2021-01-24 23:00	57	2.53
−24 h	2021-01-24 11:00	57	2.53
−48 h	2021-01-23 11:00	63	2.58
−72 h	2021-01-22 11:00	74	2.65

2020-12-30 16:00 CST · peak Flood 2,688 cfs · 6 dwells · 0.52" rain/24h

Onset (rise crosses 200 cfs)Wed 2020-12-30 16:00 CST

Peak2021-01-01 06:00 CST — 2,688 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span370 h (15.4 days)

Baseline flow (min, 72 h pre-onset)43 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2020-12-30 16:00	2021-01-01 01:00	34 h	582
Flood	peak	2021-01-01 04:00	2021-01-02 04:00	25 h	2,688
High	falling	2021-01-02 05:00	2021-01-03 06:00	26 h	1,572
Moderate	falling	2021-01-03 07:00	2021-01-06 21:00	87 h (3.6 d)	894
High	falling	2021-01-06 22:00	2021-01-08 12:00	39 h	1,528
Moderate	falling	2021-01-08 13:00	2021-01-15 01:00	157 h (6.5 d)	884

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.10
preceding 6 h	0.20
preceding 12 h	0.44
preceding 24 h	0.52
preceding 48 h	0.54
preceding 72 h	0.54

Rain onset → crest1.06 in

Rain over full excursion2.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.59	0.61
Beech Creek	50	0.51	0.52
Smith Creek-Buffalo River	87	0.53	0.55
Whiteley Creek-Buffalo River	161	0.49	0.51

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-12-30 15:00	155	3.08
−3 h	2020-12-30 13:00	92	2.77
−6 h	2020-12-30 10:00	64	2.58
−12 h	2020-12-30 04:00	45	2.42
−24 h	2020-12-29 16:00	44	2.42
−48 h	2020-12-28 16:00	51	2.48
−72 h	2020-12-27 16:00	59	2.54

2020-12-14 02:00 CST · peak Moderate 211 cfs · 1 dwells · 0.58" rain/24h

Onset (rise crosses 200 cfs)Mon 2020-12-14 02:00 CST

Peak2020-12-14 07:00 CST — 211 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span11 h (0.5 days)

Baseline flow (min, 72 h pre-onset)48 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-12-14 02:00	2020-12-14 12:00	11 h	211

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.28
preceding 24 h	0.58
preceding 48 h	0.58
preceding 72 h	1.06

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.76	1.22
Beech Creek	50	0.66	1.18
Smith Creek-Buffalo River	87	0.61	1.20
Whiteley Creek-Buffalo River	161	0.44	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-12-14 01:00	200	3.26
−3 h	2020-12-13 23:00	192	3.23
−6 h	2020-12-13 20:00	182	3.19
−12 h	2020-12-13 14:00	172	3.15
−24 h	2020-12-13 02:00	190	3.22
−48 h	2020-12-12 02:00	124	2.92
−72 h	2020-12-11 02:00	51	2.47

2020-12-12 03:00 CST · peak Moderate 338 cfs · 1 dwells · 0.48" rain/24h

Onset (rise crosses 200 cfs)Sat 2020-12-12 03:00 CST

Peak2020-12-12 05:00 CST — 338 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span21 h (0.9 days)

Baseline flow (min, 72 h pre-onset)48 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-12-12 03:00	2020-12-12 23:00	21 h	338

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.38
preceding 24 h	0.48
preceding 48 h	0.48
preceding 72 h	0.48

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.47	0.47
Beech Creek	50	0.53	0.53
Smith Creek-Buffalo River ★	87	0.59	0.59
Whiteley Creek-Buffalo River	161	0.42	0.42

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-12-12 02:00	124	2.92
−3 h	2020-12-12 00:00	61	2.56
−6 h	2020-12-11 21:00	55	2.51
−12 h	2020-12-11 15:00	50	2.47
−24 h	2020-12-11 03:00	49	2.46
−48 h	2020-12-10 03:00	55	2.51
−72 h	2020-12-09 03:00	63	2.57

2020-11-25 01:00 CST · peak Flood 1,978 cfs · 3 dwells · 0.59" rain/24h

Onset (rise crosses 200 cfs)Wed 2020-11-25 01:00 CST

Peak2020-11-25 05:00 CST — 1,978 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span124 h (5.2 days)

Baseline flow (min, 72 h pre-onset)25 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2020-11-25 05:00	2020-11-25 09:00	5 h	1,978
High	falling	2020-11-25 10:00	2020-11-25 22:00	13 h	1,585
Moderate	falling	2020-11-25 23:00	2020-11-30 04:00	102 h (4.2 d)	897

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.11
preceding 3 h	0.36
preceding 6 h	0.40
preceding 12 h	0.59
preceding 24 h	0.59
preceding 48 h	0.59
preceding 72 h	0.69

Rain onset → crest0.00 in

Rain over full excursion0.17 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.74	0.86
Beech Creek	50	0.57	0.67
Smith Creek-Buffalo River	87	0.61	0.71
Whiteley Creek-Buffalo River	161	0.50	0.60

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-11-25 00:00	182	3.19
−3 h	2020-11-24 22:00	138	3.01
−6 h	2020-11-24 19:00	136	2.99
−12 h	2020-11-24 13:00	126	2.95
−24 h	2020-11-24 01:00	140	3.02
−48 h	2020-11-23 01:00	206	3.28
−72 h	2020-11-22 01:00	23	2.17

2020-11-22 13:00 CST · peak Moderate 259 cfs · 1 dwells · 0.44" rain/24h

Onset (rise crosses 200 cfs)Sun 2020-11-22 13:00 CST

Peak2020-11-22 15:00 CST — 259 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span14 h (0.6 days)

Baseline flow (min, 72 h pre-onset)14 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-11-22 13:00	2020-11-23 02:00	14 h	259

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.10
preceding 24 h	0.44
preceding 48 h	0.44
preceding 72 h	0.44

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.54	0.55
Beech Creek	50	0.41	0.41
Smith Creek-Buffalo River	87	0.39	0.39
Whiteley Creek-Buffalo River	161	0.42	0.42

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-11-22 12:00	93	2.73
−3 h	2020-11-22 10:00	37	2.35
−6 h	2020-11-22 07:00	33	2.29
−12 h	2020-11-22 01:00	23	2.17
−24 h	2020-11-21 13:00	14	2.01
−48 h	2020-11-20 13:00	16	2.03
−72 h	2020-11-19 13:00	19	2.07

2020-10-27 09:00 CDT · peak Flood 20,025 cfs · 5 dwells · 1.38" rain/24h

Onset (rise crosses 200 cfs)Tue 2020-10-27 09:00 CDT

Peak2020-10-28 21:00 CDT — 20,025 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span187 h (7.8 days)

Baseline flow (min, 72 h pre-onset)7 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	rising	2020-10-27 12:00	2020-10-27 19:00	8 h	1,572
Moderate	rising	2020-10-27 20:00	2020-10-28 14:00	19 h	841
Flood	peak	2020-10-28 16:00	2020-10-29 22:00	31 h	20,025
High	falling	2020-10-29 23:00	2020-10-31 00:00	26 h	1,592
Moderate	falling	2020-10-31 01:00	2020-11-04 02:00	99 h (4.1 d)	892

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.10
preceding 6 h	0.41
preceding 12 h	0.79
preceding 24 h	1.38
preceding 48 h	1.39
preceding 72 h	1.39

Rain onset → crest1.71 in

Rain over full excursion1.88 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.37	1.38
Beech Creek	50	1.37	1.38
Smith Creek-Buffalo River	87	1.30	1.31
Whiteley Creek-Buffalo River ★	161	1.42	1.43

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-10-27 08:00	155	2.72
−3 h	2020-10-27 06:00	108	2.50
−6 h	2020-10-27 03:00	45	2.06
−12 h	2020-10-26 21:00	16	1.70
−24 h	2020-10-26 09:00	7	1.50
−48 h	2020-10-25 09:00	7	1.51
−72 h	2020-10-24 09:00	8	1.53

Section B — Iowa State MRMS (2015-02-01 → 2020-10-13): 89 storm excursions

Same MRMS product from the Iowa State mtarchive mirror. Newest storms first.

Storm onset (CT)	Peak stage	Start cfs	Peak cfs	Span (d)	Rain 24h (in)	Rain 72h (in)	Max 1-HUC 72h (in)
2020-09-01 06:00 CDT	High	8	1,468	1.5	1.58	2.45	2.60
2020-08-11 22:00 CDT	Moderate	15	436	0.5	1.73	1.75	2.14
2020-06-08 22:00 CDT	Moderate	68	828	1.5	0.95	0.95	0.97
2020-05-15 16:00 CDT	Flood	93	5,168	17.1	0.71	0.81	0.87
2020-05-13 08:00 CDT	Moderate	81	238	0.7	0.45	0.80	0.92
2020-05-08 14:00 CDT	Moderate	107	204	0.2	0.62	0.62	0.63
2020-05-04 12:00 CDT	Moderate	190	206	0.2	0.06	0.06	0.14
2020-04-24 23:00 CDT	Moderate	160	642	8.9	0.44	1.25	1.30
2020-04-22 21:00 CDT	Moderate	160	239	1.2	0.80	0.95	0.99
2020-04-12 01:00 CDT	Flood	188	1,735	9.3	0.42	0.42	0.46
2020-03-11 14:00 CDT	Flood	68	4,260	30.7	0.49	0.71	1.03
2020-02-24 12:00 CST	Moderate	150	218	0.6	0.37	0.51	0.60
2020-01-10 00:00 CST	Flood	84	7,525	42.1	0.53	0.53	0.73
2019-12-28 23:00 CST	High	45	1,338	5.3	0.75	0.75	0.82
2019-11-22 02:00 CST	Flood	111	1,725	15.4	0.57	0.64	0.72
2019-11-07 04:00 CST	Flood	130	1,802	9.2	1.03	1.04	1.10
2019-10-24 14:00 CDT	High	67	1,378	11.0	0.96	0.96	1.03
2019-10-10 18:00 CDT	Flood	62	3,385	3.5	0.44	0.44	0.85
2019-10-06 14:00 CDT	Flood	8	1,982	1.6	1.21	1.21	1.60
2019-08-25 17:00 CDT	Moderate	30	456	0.4	0.01	2.03	2.24
2019-08-24 04:00 CDT	Moderate	19	438	0.4	1.08	2.32	2.77
2019-08-09 03:00 CDT	Flood	23	6,528	3.3	2.11	2.56	3.44
2019-08-03 13:00 CDT	Moderate	13	230	0.2	1.03	1.16	1.55
2019-06-23 06:00 CDT	Flood	37	9,408	6.3	2.22	2.22	2.34
2019-06-06 23:00 CDT	Flood	137	4,610	5.8	1.17	1.19	1.53
2019-05-29 07:00 CDT	Flood	47	6,648	6.5	1.44	1.46	2.03
2019-05-22 04:00 CDT	Moderate	92	232	0.4	0.52	0.56	0.67
2019-04-13 19:00 CDT	Flood	158	10,725	32.4	1.14	1.14	1.21
2019-04-06 20:00 CDT	Moderate	162	440	4.8	0.57	0.99	1.13
2019-03-29 13:00 CDT	Moderate	158	457	5.0	0.30	0.30	0.49
2019-03-25 01:00 CDT	Moderate	126	322	1.7	0.55	0.95	1.27
2019-03-09 12:00 CST	High	85	933	10.0	0.55	0.56	0.63
2019-02-06 12:00 CST	Flood	92	8,102	22.3	0.69	0.69	0.75
2019-01-19 06:00 CST	High	180	1,218	9.9	0.29	0.32	0.35
2019-01-11 15:00 CST	Moderate	176	487	6.3	0.90	0.90	0.94
2018-12-27 03:00 CST	Flood	97	5,658	14.1	1.10	1.10	1.21
2018-12-13 21:00 CST	Flood	76	1,635	7.1	1.05	1.05	1.07
2018-11-30 21:00 CST	Flood	23	2,232	4.2	1.06	1.06	1.28
2018-10-31 21:00 CDT	Flood	26	2,268	7.2	1.68	1.68	2.10
2018-10-20 06:00 CDT	Moderate	42	240	0.5	1.00	1.00	1.05
2018-08-20 00:00 CDT	Moderate	55	288	0.3	0.63	1.84	2.28
2018-08-17 13:00 CDT	Moderate	23	398	0.8	1.50	2.46	2.63
2018-05-25 23:00 CDT	Moderate	41	388	1.2	0.53	2.08	2.45
2018-05-23 19:00 CDT	Moderate	34	436	1.6	1.05	1.87	2.67
2018-05-03 04:00 CDT	Flood	154	6,665	6.6	0.79	0.79	1.02
2018-04-22 09:00 CDT	Moderate	141	463	8.5	0.75	0.77	0.87
2018-04-13 19:00 CDT	Moderate	124	862	5.2	0.50	0.50	0.63
2018-03-27 10:00 CDT	Flood	45	7,325	13.1	0.51	0.78	0.88
2018-02-20 20:00 CST	Flood	25	6,310	14.8	0.90	1.02	1.25
2018-01-22 05:00 CST	High	10	1,165	1.5	1.12	1.12	1.22
2017-08-23 12:00 CDT	Moderate	161	308	1.9	0.39	0.63	1.13
2017-08-17 06:00 CDT	Moderate	19	899	4.1	1.05	2.19	2.99
2017-08-15 20:00 CDT	Moderate	13	232	0.5	0.38	1.16	1.80
2017-07-04 19:00 CDT	Moderate	95	212	0.7	0.75	1.74	1.76
2017-06-04 18:00 CDT	Flood	166	3,462	6.8	0.98	1.21	1.98
2017-04-17 07:00 CDT	Flood	153	25,450	44.0	1.06	1.06	1.23
2017-03-24 23:00 CDT	Flood	107	5,492	18.0	1.07	1.33	1.47
2017-03-09 22:00 CST	Moderate	97	408	7.2	0.46	1.41	2.06
2017-03-07 03:00 CST	Moderate	88	320	2.3	0.92	0.92	1.40
2017-02-14 17:00 CST	Moderate	37	502	2.7	1.90	1.90	2.04
2017-01-22 14:00 CST	Moderate	81	253	1.1	1.01	1.01	1.20
2017-01-16 20:00 CST	Moderate	7	260	0.8	0.51	0.92	1.10
2016-09-17 01:00 CDT	Moderate	2	653	0.5	1.58	2.27	3.15
2016-08-14 21:00 CDT	Moderate	63	309	1.8	0.25	1.11	1.46
2016-08-12 23:00 CDT	Moderate	63	422	1.0	0.46	0.85	1.20
2016-08-10 03:00 CDT	Moderate	23	359	0.4	0.60	3.62	4.09
2016-08-07 17:00 CDT	Moderate	23	812	1.9	1.30	2.16	2.94
2016-07-31 10:00 CDT	Moderate	29	421	0.7	1.47	2.33	2.91
2016-05-24 21:00 CDT	Flood	62	4,585	12.5	1.43	1.50	2.05
2016-05-09 22:00 CDT	High	77	1,222	8.1	1.46	1.46	1.79
2016-04-30 02:00 CDT	High	41	1,345	4.9	1.46	1.83	1.92
2016-03-30 19:00 CDT	Moderate	162	563	6.0	0.87	0.87	0.91
2016-03-24 02:00 CDT	Moderate	138	440	4.3	0.69	0.69	0.73
2016-02-24 05:00 CST	Flood	20	2,430	25.3	1.04	1.05	1.34
2016-01-07 10:00 CST	Moderate	192	421	8.2	0.37	0.37	0.46
2015-12-26 23:00 CST	Flood	110	17,375	10.9	0.30	0.30	0.37
2015-12-23 18:00 CST	Moderate	100	215	0.3	0.48	0.56	0.68
2015-12-13 12:00 CST	Flood	40	6,170	5.5	1.00	1.00	1.18
2015-11-27 23:00 CST	High	22	1,350	4.6	1.25	1.27	1.48
2015-11-17 15:00 CST	Flood	8	1,600	1.3	2.24	2.99	3.32
2015-07-08 17:00 CDT	High	50	1,132	4.1	1.13	1.96	2.68
2015-06-26 23:00 CDT	Moderate	116	442	0.9	1.46	1.46	1.60
2015-06-13 23:00 CDT	Flood	28	24,550	10.7	1.38	1.38	1.74
2015-06-06 15:00 CDT	Moderate	121	545	0.3	0.14	0.14	0.29
2015-05-09 15:00 CDT	Flood	45	12,125	26.1	0.41	1.67	2.00
2015-04-13 20:00 CDT	Moderate	152	785	11.8	0.93	0.93	1.08
2015-04-10 05:00 CDT	Moderate	144	234	0.5	0.47	0.48	0.73
2015-03-03 21:00 CST	Flood	112	3,070	33.7	0.05	0.20	0.23
2015-02-22 01:00 CST	Moderate	28	254	0.9	0.22	0.30	0.39

2020-09-01 06:00 CDT · peak High 1,468 cfs · 2 dwells · 1.58" rain/24h

Onset (rise crosses 200 cfs)Tue 2020-09-01 06:00 CDT

Peak2020-09-01 11:00 CDT — 1,468 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span37 h (1.5 days)

Baseline flow (min, 72 h pre-onset)8 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2020-09-01 08:00	2020-09-01 15:00	8 h	1,468
Moderate	falling	2020-09-01 16:00	2020-09-02 18:00	27 h	842

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.43
preceding 3 h	1.19
preceding 6 h	1.35
preceding 12 h	1.35
preceding 24 h	1.58
preceding 48 h	2.06
preceding 72 h	2.45

Rain onset → crest0.27 in

Rain over full excursion1.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.80	2.60
Beech Creek	50	1.60	2.19
Smith Creek-Buffalo River	87	1.82	2.46
Whiteley Creek-Buffalo River	161	1.32	2.44

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-09-01 05:00	54	2.10
−3 h	2020-09-01 03:00	13	1.64
−6 h	2020-09-01 00:00	12	1.63
−12 h	2020-08-31 18:00	13	1.64
−24 h	2020-08-31 06:00	13	1.65
−48 h	2020-08-30 06:00	11	1.61
−72 h	2020-08-29 06:00	8	1.54

2020-08-11 22:00 CDT · peak Moderate 436 cfs · 1 dwells · 1.73" rain/24h

Onset (rise crosses 200 cfs)Tue 2020-08-11 22:00 CDT

Peak2020-08-11 23:00 CDT — 436 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span11 h (0.5 days)

Baseline flow (min, 72 h pre-onset)15 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-08-11 22:00	2020-08-12 08:00	11 h	436

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.11
preceding 12 h	1.72
preceding 24 h	1.73
preceding 48 h	1.74
preceding 72 h	1.75

Rain onset → crest0.00 in

Rain over full excursion0.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.63	1.67
Beech Creek	50	1.74	1.76
Smith Creek-Buffalo River ★	87	2.13	2.14
Whiteley Creek-Buffalo River	161	1.56	1.58

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-08-11 21:00	32	1.93
−3 h	2020-08-11 19:00	36	1.98
−6 h	2020-08-11 16:00	36	1.97
−12 h	2020-08-11 10:00	17	1.72
−24 h	2020-08-10 22:00	18	1.74
−48 h	2020-08-09 22:00	20	1.77
−72 h	2020-08-08 22:00	15	1.69

2020-06-08 22:00 CDT · peak Moderate 828 cfs · 1 dwells · 0.95" rain/24h

Onset (rise crosses 200 cfs)Mon 2020-06-08 22:00 CDT

Peak2020-06-09 05:00 CDT — 828 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span37 h (1.5 days)

Baseline flow (min, 72 h pre-onset)68 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-06-08 22:00	2020-06-10 10:00	37 h	828

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.10
preceding 3 h	0.51
preceding 6 h	0.88
preceding 12 h	0.95
preceding 24 h	0.95
preceding 48 h	0.95
preceding 72 h	0.95

Rain onset → crest0.26 in

Rain over full excursion0.26 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.93	0.93
Beech Creek	50	0.94	0.94
Smith Creek-Buffalo River	87	0.93	0.93
Whiteley Creek-Buffalo River ★	161	0.97	0.97

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-06-08 21:00	190	2.66
−3 h	2020-06-08 19:00	77	2.13
−6 h	2020-06-08 16:00	68	2.07
−12 h	2020-06-08 10:00	70	2.08
−24 h	2020-06-07 22:00	74	2.11
−48 h	2020-06-06 22:00	87	2.20
−72 h	2020-06-05 22:00	113	2.35

2020-05-15 16:00 CDT · peak Flood 5,168 cfs · 9 dwells · 0.71" rain/24h

Onset (rise crosses 200 cfs)Fri 2020-05-15 16:00 CDT

Peak2020-05-17 06:00 CDT — 5,168 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span410 h (17.1 days)

Baseline flow (min, 72 h pre-onset)93 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2020-05-15 16:00	2020-05-17 01:00	34 h	544
Flood	peak	2020-05-17 03:00	2020-05-17 19:00	17 h	5,168
High	falling	2020-05-17 20:00	2020-05-18 16:00	21 h	1,535
Moderate	falling	2020-05-18 17:00	2020-05-25 15:00	167 h (7.0 d)	896
Flood	falling	2020-05-25 16:00	2020-05-25 19:00	4 h	1,732
High	falling	2020-05-25 20:00	2020-05-26 01:00	6 h	1,482
Flood	falling	2020-05-26 02:00	2020-05-26 16:00	15 h	2,172
High	falling	2020-05-26 17:00	2020-05-28 01:00	33 h	1,598
Moderate	falling	2020-05-28 02:00	2020-06-01 17:00	112 h (4.7 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.14
preceding 3 h	0.39
preceding 6 h	0.51
preceding 12 h	0.69
preceding 24 h	0.71
preceding 48 h	0.73
preceding 72 h	0.81

Rain onset → crest1.75 in

Rain over full excursion4.24 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.59	0.74
Beech Creek	50	0.73	0.81
Smith Creek-Buffalo River	87	0.69	0.79
Whiteley Creek-Buffalo River ★	161	0.79	0.87

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-05-15 15:00	195	2.70
−3 h	2020-05-15 13:00	179	2.64
−6 h	2020-05-15 10:00	172	2.61
−12 h	2020-05-15 04:00	166	2.58
−24 h	2020-05-14 16:00	177	2.63
−48 h	2020-05-13 16:00	230	2.83
−72 h	2020-05-12 16:00	91	2.22

2020-05-13 08:00 CDT · peak Moderate 238 cfs · 1 dwells · 0.45" rain/24h

Onset (rise crosses 200 cfs)Wed 2020-05-13 08:00 CDT

Peak2020-05-13 12:00 CDT — 238 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span17 h (0.7 days)

Baseline flow (min, 72 h pre-onset)81 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-05-13 08:00	2020-05-14 00:00	17 h	238

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.05
preceding 24 h	0.45
preceding 48 h	0.80
preceding 72 h	0.80

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.53	0.92
Beech Creek	50	0.42	0.73
Smith Creek-Buffalo River	87	0.46	0.79
Whiteley Creek-Buffalo River	161	0.40	0.75

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-05-13 07:00	196	2.71
−3 h	2020-05-13 05:00	174	2.62
−6 h	2020-05-13 02:00	137	2.46
−12 h	2020-05-12 20:00	100	2.27
−24 h	2020-05-12 08:00	83	2.17
−48 h	2020-05-11 08:00	88	2.20
−72 h	2020-05-10 08:00	104	2.29

2020-05-08 14:00 CDT · peak Moderate 204 cfs · 1 dwells · 0.62" rain/24h

Onset (rise crosses 200 cfs)Fri 2020-05-08 14:00 CDT

Peak2020-05-08 18:00 CDT — 204 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span6 h (0.2 days)

Baseline flow (min, 72 h pre-onset)107 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-05-08 14:00	2020-05-08 19:00	6 h	204

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.52
preceding 24 h	0.62
preceding 48 h	0.62
preceding 72 h	0.62

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.63	0.63
Beech Creek	50	0.63	0.63
Smith Creek-Buffalo River	87	0.61	0.61
Whiteley Creek-Buffalo River ★	161	0.62	0.63

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-05-08 13:00	200	2.72
−3 h	2020-05-08 11:00	180	2.64
−6 h	2020-05-08 08:00	156	2.54
−12 h	2020-05-08 02:00	107	2.31
−24 h	2020-05-07 14:00	111	2.33
−48 h	2020-05-06 14:00	132	2.44
−72 h	2020-05-05 14:00	169	2.60

2020-05-04 12:00 CDT · peak Moderate 206 cfs · 1 dwells · 0.06" rain/24h

Onset (rise crosses 200 cfs)Mon 2020-05-04 12:00 CDT

Peak2020-05-04 13:00 CDT — 206 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span5 h (0.2 days)

Baseline flow (min, 72 h pre-onset)190 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-05-04 12:00	2020-05-04 16:00	5 h	206

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.06
preceding 3 h	0.06
preceding 6 h	0.06
preceding 12 h	0.06
preceding 24 h	0.06
preceding 48 h	0.06
preceding 72 h	0.06

Rain onset → crest0.05 in

Rain over full excursion0.05 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.00	0.00
Beech Creek	50	0.01	0.01
Smith Creek-Buffalo River	87	0.01	0.01
Whiteley Creek-Buffalo River ★	161	0.14	0.14

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-05-04 11:00	190	2.68
−3 h	2020-05-04 09:00	190	2.68
−6 h	2020-05-04 06:00	190	2.68
−12 h	2020-05-04 00:00	195	2.70
−24 h	2020-05-03 12:00	203	2.73
−48 h	2020-05-02 12:00	243	2.87
−72 h	2020-05-01 12:00	289	3.01

2020-04-24 23:00 CDT · peak Moderate 642 cfs · 1 dwells · 0.44" rain/24h

Onset (rise crosses 200 cfs)Fri 2020-04-24 23:00 CDT

Peak2020-04-29 07:00 CDT — 642 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span213 h (8.9 days)

Baseline flow (min, 72 h pre-onset)160 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-04-24 23:00	2020-05-03 19:00	213 h (8.9 d)	642

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.34
preceding 6 h	0.34
preceding 12 h	0.41
preceding 24 h	0.44
preceding 48 h	0.46
preceding 72 h	1.25

Rain onset → crest0.77 in

Rain over full excursion0.79 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.37	1.25
Beech Creek	50	0.41	1.18
Smith Creek-Buffalo River	87	0.42	1.22
Whiteley Creek-Buffalo River ★	161	0.49	1.30

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-04-24 22:00	192	2.69
−3 h	2020-04-24 20:00	172	2.61
−6 h	2020-04-24 17:00	176	2.62
−12 h	2020-04-24 11:00	181	2.65
−24 h	2020-04-23 23:00	204	2.73
−48 h	2020-04-22 23:00	213	2.77
−72 h	2020-04-21 23:00	174	2.62

2020-04-22 21:00 CDT · peak Moderate 239 cfs · 1 dwells · 0.80" rain/24h

Onset (rise crosses 200 cfs)Wed 2020-04-22 21:00 CDT

Peak2020-04-23 05:00 CDT — 239 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span28 h (1.2 days)

Baseline flow (min, 72 h pre-onset)160 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-04-22 21:00	2020-04-24 00:00	28 h	239

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.01
preceding 6 h	0.25
preceding 12 h	0.69
preceding 24 h	0.80
preceding 48 h	0.82
preceding 72 h	0.95

Rain onset → crest0.01 in

Rain over full excursion0.02 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.86	0.97
Beech Creek ★	50	0.75	0.99
Smith Creek-Buffalo River	87	0.77	0.94
Whiteley Creek-Buffalo River	161	0.80	0.92

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-04-22 20:00	196	2.71
−3 h	2020-04-22 18:00	187	2.67
−6 h	2020-04-22 15:00	176	2.63
−12 h	2020-04-22 09:00	162	2.57
−24 h	2020-04-21 21:00	177	2.63
−48 h	2020-04-20 21:00	209	2.75
−72 h	2020-04-19 21:00	247	2.88

2020-04-12 01:00 CDT · peak Flood 1,735 cfs · 5 dwells · 0.42" rain/24h

Onset (rise crosses 200 cfs)Sun 2020-04-12 01:00 CDT

Peak2020-04-13 02:00 CDT — 1,735 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span223 h (9.3 days)

Baseline flow (min, 72 h pre-onset)188 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2020-04-12 01:00	2020-04-12 08:00	8 h	831
High	rising	2020-04-12 09:00	2020-04-12 13:00	5 h	1,012
Moderate	rising	2020-04-12 14:00	2020-04-12 21:00	8 h	880
High	peak	2020-04-12 22:00	2020-04-13 21:00	24 h	1,735
Moderate	falling	2020-04-13 22:00	2020-04-21 07:00	178 h (7.4 d)	889

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.35
preceding 6 h	0.41
preceding 12 h	0.41
preceding 24 h	0.42
preceding 48 h	0.42
preceding 72 h	0.42

Rain onset → crest1.17 in

Rain over full excursion1.67 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.46	0.46
Beech Creek	50	0.38	0.38
Smith Creek-Buffalo River	87	0.42	0.42
Whiteley Creek-Buffalo River	161	0.40	0.40

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-04-12 00:00	198	2.71
−3 h	2020-04-11 22:00	188	2.67
−6 h	2020-04-11 19:00	190	2.68
−12 h	2020-04-11 13:00	196	2.70
−24 h	2020-04-11 01:00	204	2.73
−48 h	2020-04-10 01:00	242	2.86
−72 h	2020-04-09 01:00	296	3.03

2020-03-11 14:00 CDT · peak Flood 4,260 cfs · 11 dwells · 0.49" rain/24h

Onset (rise crosses 200 cfs)Wed 2020-03-11 14:00 CDT

Peak2020-03-19 23:00 CDT — 4,260 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span736 h (30.7 days)

Baseline flow (min, 72 h pre-onset)68 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2020-03-11 14:00	2020-03-14 10:00	69 h (2.9 d)	918
Flood	rising	2020-03-14 14:00	2020-03-15 01:00	12 h	2,815
High	rising	2020-03-15 02:00	2020-03-16 02:00	25 h	1,552
Moderate	rising	2020-03-16 03:00	2020-03-18 04:00	50 h (2.1 d)	898
Flood	rising	2020-03-18 06:00	2020-03-18 16:00	11 h	2,685
High	rising	2020-03-18 17:00	2020-03-19 07:00	15 h	1,540
Flood	peak	2020-03-19 08:00	2020-03-20 11:00	28 h	4,260
High	falling	2020-03-20 12:00	2020-03-21 18:00	31 h	1,598
Moderate	falling	2020-03-21 19:00	2020-03-22 13:00	19 h	891
High	falling	2020-03-22 14:00	2020-03-22 19:00	6 h	938
Moderate	falling	2020-03-22 20:00	2020-04-11 05:00	466 h (19.4 d)	895

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.02
preceding 12 h	0.49
preceding 24 h	0.49
preceding 48 h	0.49
preceding 72 h	0.71

Rain onset → crest3.53 in

Rain over full excursion6.52 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.81	1.03
Beech Creek	50	0.60	0.82
Smith Creek-Buffalo River	87	0.56	0.77
Whiteley Creek-Buffalo River	161	0.22	0.47

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-03-11 13:00	104	2.29
−3 h	2020-03-11 11:00	97	2.26
−6 h	2020-03-11 08:00	92	2.23
−12 h	2020-03-11 02:00	85	2.18
−24 h	2020-03-10 14:00	94	2.24
−48 h	2020-03-09 14:00	70	2.08
−72 h	2020-03-08 14:00	72	2.10

2020-02-24 12:00 CST · peak Moderate 218 cfs · 1 dwells · 0.37" rain/24h

Onset (rise crosses 200 cfs)Mon 2020-02-24 12:00 CST

Peak2020-02-24 15:00 CST — 218 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span14 h (0.6 days)

Baseline flow (min, 72 h pre-onset)150 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2020-02-24 12:00	2020-02-25 01:00	14 h	218

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.01
preceding 6 h	0.01
preceding 12 h	0.06
preceding 24 h	0.37
preceding 48 h	0.51
preceding 72 h	0.51

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.43	0.60
Beech Creek	50	0.37	0.49
Smith Creek-Buffalo River	87	0.37	0.50
Whiteley Creek-Buffalo River	161	0.34	0.47

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-02-24 11:00	197	2.71
−3 h	2020-02-24 09:00	188	2.67
−6 h	2020-02-24 06:00	176	2.62
−12 h	2020-02-24 00:00	160	2.56
−24 h	2020-02-23 12:00	152	2.53
−48 h	2020-02-22 12:00	166	2.59
−72 h	2020-02-21 12:00	186	2.67

2020-01-10 00:00 CST · peak Flood 7,525 cfs · 12 dwells · 0.53" rain/24h

Onset (rise crosses 200 cfs)Fri 2020-01-10 00:00 CST

Peak2020-01-11 05:00 CST — 7,525 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span1011 h (42.1 days)

Baseline flow (min, 72 h pre-onset)84 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2020-01-10 00:00	2020-01-10 20:00	21 h	870
Flood	peak	2020-01-10 23:00	2020-01-11 23:00	25 h	7,525
High	falling	2020-01-12 00:00	2020-01-13 04:00	29 h	1,575
Moderate	falling	2020-01-13 05:00	2020-02-04 06:00	530 h (22.1 d)	922
Flood	falling	2020-02-04 08:00	2020-02-04 21:00	14 h	3,285
High	falling	2020-02-04 22:00	2020-02-05 12:00	15 h	1,595
Flood	falling	2020-02-05 13:00	2020-02-05 20:00	8 h	1,932
High	falling	2020-02-05 21:00	2020-02-07 02:00	30 h	1,562
Moderate	falling	2020-02-07 03:00	2020-02-12 10:00	128 h (5.3 d)	894
Flood	falling	2020-02-12 12:00	2020-02-12 23:00	12 h	2,800
High	falling	2020-02-13 00:00	2020-02-14 03:00	28 h	1,555
Moderate	falling	2020-02-14 04:00	2020-02-21 02:00	167 h (7.0 d)	891

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.09
preceding 6 h	0.35
preceding 12 h	0.53
preceding 24 h	0.53
preceding 48 h	0.53
preceding 72 h	0.53

Rain onset → crest1.89 in

Rain over full excursion7.88 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.73	0.73
Beech Creek	50	0.57	0.57
Smith Creek-Buffalo River	87	0.60	0.60
Whiteley Creek-Buffalo River	161	0.36	0.36

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2020-01-09 23:00	139	2.71
−3 h	2020-01-09 21:00	108	2.56
−6 h	2020-01-09 18:00	91	2.46
−12 h	2020-01-09 12:00	84	2.42
−24 h	2020-01-09 00:00	88	2.45
−48 h	2020-01-08 00:00	98	2.50
−72 h	2020-01-07 00:00	112	2.58

2019-12-28 23:00 CST · peak High 1,338 cfs · 2 dwells · 0.75" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-12-28 23:00 CST

Peak2019-12-29 03:00 CST — 1,338 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span128 h (5.3 days)

Baseline flow (min, 72 h pre-onset)45 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2019-12-29 02:00	2019-12-29 10:00	9 h	1,338
Moderate	falling	2019-12-29 11:00	2020-01-03 06:00	116 h (4.8 d)	899

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.03
preceding 3 h	0.23
preceding 6 h	0.42
preceding 12 h	0.74
preceding 24 h	0.75
preceding 48 h	0.75
preceding 72 h	0.75

Rain onset → crest0.07 in

Rain over full excursion0.14 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.82	0.82
Beech Creek	50	0.77	0.77
Smith Creek-Buffalo River	87	0.75	0.75
Whiteley Creek-Buffalo River	161	0.69	0.69

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-12-28 22:00	174	2.86
−3 h	2019-12-28 20:00	64	2.28
−6 h	2019-12-28 17:00	53	2.20
−12 h	2019-12-28 11:00	46	2.13
−24 h	2019-12-27 23:00	45	2.12
−48 h	2019-12-26 23:00	47	2.14
−72 h	2019-12-25 23:00	48	2.15

2019-11-22 02:00 CST · peak Flood 1,725 cfs · 6 dwells · 0.57" rain/24h

Onset (rise crosses 200 cfs)Fri 2019-11-22 02:00 CST

Peak2019-11-22 08:00 CST — 1,725 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span370 h (15.4 days)

Baseline flow (min, 72 h pre-onset)111 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2019-11-22 04:00	2019-11-23 03:00	24 h	1,725
Moderate	falling	2019-11-23 04:00	2019-11-28 18:00	135 h (5.6 d)	898
High	falling	2019-11-28 19:00	2019-11-29 10:00	16 h	1,070
Moderate	falling	2019-11-29 11:00	2019-11-30 08:00	22 h	895
High	falling	2019-11-30 09:00	2019-12-01 05:00	21 h	1,180
Moderate	falling	2019-12-01 06:00	2019-12-07 11:00	150 h (6.2 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.13
preceding 3 h	0.35
preceding 6 h	0.42
preceding 12 h	0.46
preceding 24 h	0.57
preceding 48 h	0.64
preceding 72 h	0.64

Rain onset → crest0.19 in

Rain over full excursion1.82 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.64	0.72
Beech Creek	50	0.56	0.62
Smith Creek-Buffalo River	87	0.58	0.64
Whiteley Creek-Buffalo River	161	0.53	0.60

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-11-22 01:00	186	2.90
−3 h	2019-11-21 23:00	128	2.66
−6 h	2019-11-21 20:00	118	2.61
−12 h	2019-11-21 14:00	112	2.58
−24 h	2019-11-21 02:00	111	2.57
−48 h	2019-11-20 02:00	126	2.65
−72 h	2019-11-19 02:00	146	2.74

2019-11-07 04:00 CST · peak Flood 1,802 cfs · 4 dwells · 1.03" rain/24h

Onset (rise crosses 200 cfs)Thu 2019-11-07 04:00 CST

Peak2019-11-07 10:00 CST — 1,802 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span220 h (9.2 days)

Baseline flow (min, 72 h pre-onset)130 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2019-11-07 04:00	2019-11-07 08:00	5 h	775
Flood	peak	2019-11-07 10:00	2019-11-07 13:00	4 h	1,802
High	falling	2019-11-07 14:00	2019-11-08 04:00	15 h	1,548
Moderate	falling	2019-11-08 05:00	2019-11-16 07:00	195 h (8.1 d)	900

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.23
preceding 3 h	0.68
preceding 6 h	0.85
preceding 12 h	1.00
preceding 24 h	1.03
preceding 48 h	1.03
preceding 72 h	1.04

Rain onset → crest0.37 in

Rain over full excursion0.84 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.01	1.02
Beech Creek	50	0.95	0.96
Smith Creek-Buffalo River	87	0.97	0.97
Whiteley Creek-Buffalo River ★	161	1.10	1.10

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-11-07 03:00	190	2.92
−3 h	2019-11-07 01:00	149	2.75
−6 h	2019-11-06 22:00	140	2.71
−12 h	2019-11-06 16:00	132	2.68
−24 h	2019-11-06 04:00	142	2.73
−48 h	2019-11-05 04:00	173	2.85
−72 h	2019-11-04 04:00	211	3.00

2019-10-24 14:00 CDT · peak High 1,378 cfs · 5 dwells · 0.96" rain/24h

Onset (rise crosses 200 cfs)Thu 2019-10-24 14:00 CDT

Peak2019-10-25 00:00 CDT — 1,378 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span264 h (11.0 days)

Baseline flow (min, 72 h pre-onset)67 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2019-10-24 14:00	2019-10-24 19:00	6 h	757
High	peak	2019-10-24 20:00	2019-10-25 19:00	24 h	1,378
Moderate	falling	2019-10-25 20:00	2019-10-26 16:00	21 h	892
High	falling	2019-10-26 17:00	2019-10-27 02:00	10 h	1,080
Moderate	falling	2019-10-27 03:00	2019-11-04 12:00	203 h (8.5 d)	880

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.18
preceding 6 h	0.68
preceding 12 h	0.96
preceding 24 h	0.96
preceding 48 h	0.96
preceding 72 h	0.96

Rain onset → crest0.82 in

Rain over full excursion2.03 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.03	1.03
Beech Creek	50	0.97	0.97
Smith Creek-Buffalo River	87	0.97	0.97
Whiteley Creek-Buffalo River	161	0.91	0.91

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-10-24 13:00	180	2.88
−3 h	2019-10-24 11:00	112	2.58
−6 h	2019-10-24 08:00	79	2.38
−12 h	2019-10-24 02:00	68	2.31
−24 h	2019-10-23 14:00	77	2.37
−48 h	2019-10-22 14:00	106	2.54
−72 h	2019-10-21 14:00	172	2.85

2019-10-10 18:00 CDT · peak Flood 3,385 cfs · 4 dwells · 0.44" rain/24h

Onset (rise crosses 200 cfs)Thu 2019-10-10 18:00 CDT

Peak2019-10-11 06:00 CDT — 3,385 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span84 h (3.5 days)

Baseline flow (min, 72 h pre-onset)62 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	rising	2019-10-10 20:00	2019-10-11 03:00	8 h	1,645
Flood	peak	2019-10-11 04:00	2019-10-11 14:00	11 h	3,385
High	falling	2019-10-11 15:00	2019-10-11 23:00	9 h	1,542
Moderate	falling	2019-10-12 00:00	2019-10-14 05:00	54 h (2.2 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.35
preceding 3 h	0.36
preceding 6 h	0.37
preceding 12 h	0.40
preceding 24 h	0.44
preceding 48 h	0.44
preceding 72 h	0.44

Rain onset → crest1.50 in

Rain over full excursion1.56 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.06	0.06
Beech Creek	50	0.38	0.38
Smith Creek-Buffalo River	87	0.13	0.13
Whiteley Creek-Buffalo River ★	161	0.85	0.85

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-10-10 17:00	66	2.30
−3 h	2019-10-10 15:00	62	2.27
−6 h	2019-10-10 12:00	64	2.28
−12 h	2019-10-10 06:00	69	2.32
−24 h	2019-10-09 18:00	83	2.41
−48 h	2019-10-08 18:00	137	2.70
−72 h	2019-10-07 18:00	320	3.33

2019-10-06 14:00 CDT · peak Flood 1,982 cfs · 3 dwells · 1.21" rain/24h

Onset (rise crosses 200 cfs)Sun 2019-10-06 14:00 CDT

Peak2019-10-06 18:00 CDT — 1,982 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span39 h (1.6 days)

Baseline flow (min, 72 h pre-onset)8 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2019-10-06 15:00	2019-10-06 19:00	5 h	1,982
High	falling	2019-10-06 20:00	2019-10-07 04:00	9 h	1,405
Moderate	falling	2019-10-07 02:00	2019-10-08 04:00	27 h	979

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.23
preceding 3 h	0.65
preceding 6 h	1.05
preceding 12 h	1.10
preceding 24 h	1.21
preceding 48 h	1.21
preceding 72 h	1.21

Rain onset → crest0.80 in

Rain over full excursion1.25 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.70	0.70
Beech Creek	50	1.25	1.25
Smith Creek-Buffalo River	87	0.99	0.99
Whiteley Creek-Buffalo River ★	161	1.60	1.60

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-10-06 13:00	45	2.12
−3 h	2019-10-06 11:00	19	1.81
−6 h	2019-10-06 08:00	10	1.64
−12 h	2019-10-06 02:00	8	1.58
−24 h	2019-10-05 14:00	8	1.59
−48 h	2019-10-04 14:00	9	1.63
−72 h	2019-10-03 14:00	11	1.66

2019-08-25 17:00 CDT · peak Moderate 456 cfs · 1 dwells · 0.01" rain/24h

Onset (rise crosses 200 cfs)Sun 2019-08-25 17:00 CDT

Peak2019-08-25 17:00 CDT — 456 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span10 h (0.4 days)

Baseline flow (min, 72 h pre-onset)30 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-08-25 17:00	2019-08-26 02:00	10 h	456

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.01
preceding 12 h	0.01
preceding 24 h	0.01
preceding 48 h	0.77
preceding 72 h	2.03

Rain onset → crest— in

Rain over full excursion0.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.02	2.24
Beech Creek	50	0.00	1.69
Smith Creek-Buffalo River	87	0.00	1.85
Whiteley Creek-Buffalo River	161	0.00	2.11

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-08-25 16:00	119	—
−3 h	2019-08-25 14:00	119	—
−6 h	2019-08-25 11:00	119	—
−12 h	2019-08-25 05:00	128	—
−24 h	2019-08-24 17:00	164	2.82
−48 h	2019-08-23 17:00	32	1.99
−72 h	2019-08-22 17:00	42	2.09

2019-08-24 04:00 CDT · peak Moderate 438 cfs · 1 dwells · 1.08" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-08-24 04:00 CDT

Peak2019-08-24 05:00 CDT — 438 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span10 h (0.4 days)

Baseline flow (min, 72 h pre-onset)19 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-08-24 04:00	2019-08-24 13:00	10 h	438

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.26
preceding 3 h	0.40
preceding 6 h	0.47
preceding 12 h	0.51
preceding 24 h	1.08
preceding 48 h	2.00
preceding 72 h	2.32

Rain onset → crest0.11 in

Rain over full excursion0.22 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.00	1.81
Beech Creek	50	0.85	2.36
Smith Creek-Buffalo River	87	0.96	2.03
Whiteley Creek-Buffalo River ★	161	1.28	2.77

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-08-24 03:00	69	2.28
−3 h	2019-08-24 01:00	34	2.01
−6 h	2019-08-23 22:00	33	2.00
−12 h	2019-08-23 16:00	32	1.99
−24 h	2019-08-23 04:00	30	1.97
−48 h	2019-08-22 04:00	21	1.84
−72 h	2019-08-21 04:00	26	1.91

2019-08-09 03:00 CDT · peak Flood 6,528 cfs · 5 dwells · 2.11" rain/24h

Onset (rise crosses 200 cfs)Fri 2019-08-09 03:00 CDT

Peak2019-08-09 04:00 CDT — 6,528 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span79 h (3.3 days)

Baseline flow (min, 72 h pre-onset)23 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2019-08-09 03:00	2019-08-09 08:00	6 h	6,528
High	falling	2019-08-09 09:00	2019-08-09 13:00	5 h	1,525
Moderate	falling	2019-08-09 14:00	2019-08-10 07:00	18 h	878
High	falling	2019-08-10 08:00	2019-08-10 14:00	7 h	1,748
Moderate	falling	2019-08-10 15:00	2019-08-12 09:00	43 h	850

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.20
preceding 3 h	1.45
preceding 6 h	1.95
preceding 12 h	1.98
preceding 24 h	2.11
preceding 48 h	2.56
preceding 72 h	2.56

Rain onset → crest0.00 in

Rain over full excursion0.81 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.40	2.00
Beech Creek	50	2.61	3.31
Smith Creek-Buffalo River ★	87	2.86	3.44
Whiteley Creek-Buffalo River	161	1.96	2.17

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-08-09 02:00	110	2.57
−3 h	2019-08-09 00:00	60	2.25
−6 h	2019-08-08 21:00	28	1.95
−12 h	2019-08-08 15:00	23	1.88
−24 h	2019-08-08 03:00	23	1.88
−48 h	2019-08-07 03:00	26	1.92
−72 h	2019-08-06 03:00	34	2.01

2019-08-03 13:00 CDT · peak Moderate 230 cfs · 1 dwells · 1.03" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-08-03 13:00 CDT

Peak2019-08-03 13:00 CDT — 230 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span4 h (0.2 days)

Baseline flow (min, 72 h pre-onset)13 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-08-03 13:00	2019-08-03 16:00	4 h	230

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.79
preceding 24 h	1.03
preceding 48 h	1.03
preceding 72 h	1.16

Rain onset → crest— in

Rain over full excursion0.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.49	1.55
Beech Creek	50	0.71	0.81
Smith Creek-Buffalo River	87	1.37	1.53
Whiteley Creek-Buffalo River	161	0.68	0.84

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-08-03 12:00	176	2.85
−3 h	2019-08-03 10:00	33	2.00
−6 h	2019-08-03 07:00	30	1.97
−12 h	2019-08-03 01:00	14	1.72
−24 h	2019-08-02 13:00	14	1.72
−48 h	2019-08-01 13:00	15	1.74
−72 h	2019-07-31 13:00	14	1.73

2019-06-23 06:00 CDT · peak Flood 9,408 cfs · 3 dwells · 2.22" rain/24h

Onset (rise crosses 200 cfs)Sun 2019-06-23 06:00 CDT

Peak2019-06-23 15:00 CDT — 9,408 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span152 h (6.3 days)

Baseline flow (min, 72 h pre-onset)37 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2019-06-23 09:00	2019-06-24 17:00	33 h	9,408
High	falling	2019-06-24 18:00	2019-06-25 11:00	18 h	1,545
Moderate	falling	2019-06-25 12:00	2019-06-29 13:00	98 h (4.1 d)	896

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.21
preceding 3 h	0.67
preceding 6 h	1.28
preceding 12 h	1.97
preceding 24 h	2.22
preceding 48 h	2.22
preceding 72 h	2.22

Rain onset → crest1.81 in

Rain over full excursion4.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.34	2.34
Beech Creek	50	2.16	2.16
Smith Creek-Buffalo River	87	2.23	2.23
Whiteley Creek-Buffalo River	161	2.17	2.17

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-06-23 05:00	146	2.69
−3 h	2019-06-23 03:00	75	2.30
−6 h	2019-06-23 00:00	44	2.06
−12 h	2019-06-22 18:00	38	2.01
−24 h	2019-06-22 06:00	40	2.02
−48 h	2019-06-21 06:00	48	2.10
−72 h	2019-06-20 06:00	56	2.17

2019-06-06 23:00 CDT · peak Flood 4,610 cfs · 3 dwells · 1.17" rain/24h

Onset (rise crosses 200 cfs)Thu 2019-06-06 23:00 CDT

Peak2019-06-07 02:00 CDT — 4,610 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span140 h (5.8 days)

Baseline flow (min, 72 h pre-onset)137 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2019-06-07 00:00	2019-06-07 11:00	12 h	4,610
High	falling	2019-06-07 12:00	2019-06-08 17:00	30 h	1,565
Moderate	falling	2019-06-08 18:00	2019-06-12 18:00	97 h (4.0 d)	883

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.19
preceding 3 h	0.56
preceding 6 h	0.81
preceding 12 h	0.90
preceding 24 h	1.17
preceding 48 h	1.19
preceding 72 h	1.19

Rain onset → crest0.27 in

Rain over full excursion0.66 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.51	1.53
Beech Creek	50	1.18	1.20
Smith Creek-Buffalo River	87	1.32	1.32
Whiteley Creek-Buffalo River	161	0.89	0.92

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-06-06 22:00	192	2.88
−3 h	2019-06-06 20:00	153	2.72
−6 h	2019-06-06 17:00	138	2.65
−12 h	2019-06-06 11:00	142	2.67
−24 h	2019-06-05 23:00	156	2.73
−48 h	2019-06-04 23:00	192	2.88
−72 h	2019-06-03 23:00	234	3.02

2019-05-29 07:00 CDT · peak Flood 6,648 cfs · 4 dwells · 1.44" rain/24h

Onset (rise crosses 200 cfs)Wed 2019-05-29 07:00 CDT

Peak2019-05-29 18:00 CDT — 6,648 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span156 h (6.5 days)

Baseline flow (min, 72 h pre-onset)47 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	rising	2019-05-29 08:00	2019-05-29 15:00	8 h	1,560
Flood	peak	2019-05-29 16:00	2019-05-30 17:00	26 h	6,648
High	falling	2019-05-30 18:00	2019-05-31 13:00	20 h	1,568
Moderate	falling	2019-05-31 14:00	2019-06-04 18:00	101 h (4.2 d)	890

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.19
preceding 6 h	1.44
preceding 12 h	1.44
preceding 24 h	1.44
preceding 48 h	1.44
preceding 72 h	1.46

Rain onset → crest1.15 in

Rain over full excursion1.72 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.03	2.03
Beech Creek	50	1.61	1.63
Smith Creek-Buffalo River	87	1.93	1.94
Whiteley Creek-Buffalo River	161	0.79	0.81

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-05-29 06:00	81	2.35
−3 h	2019-05-29 04:00	61	2.21
−6 h	2019-05-29 01:00	47	2.10
−12 h	2019-05-28 19:00	48	2.11
−24 h	2019-05-28 07:00	55	2.17
−48 h	2019-05-27 07:00	64	2.23
−72 h	2019-05-26 07:00	79	2.34

2019-05-22 04:00 CDT · peak Moderate 232 cfs · 1 dwells · 0.52" rain/24h

Onset (rise crosses 200 cfs)Wed 2019-05-22 04:00 CDT

Peak2019-05-22 06:00 CDT — 232 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span9 h (0.4 days)

Baseline flow (min, 72 h pre-onset)92 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-05-22 04:00	2019-05-22 12:00	9 h	232

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.12
preceding 24 h	0.52
preceding 48 h	0.56
preceding 72 h	0.56

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.60	0.67
Beech Creek	50	0.50	0.53
Smith Creek-Buffalo River	87	0.53	0.61
Whiteley Creek-Buffalo River	161	0.47	0.49

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-05-22 03:00	190	2.87
−3 h	2019-05-22 01:00	154	2.73
−6 h	2019-05-21 22:00	129	2.62
−12 h	2019-05-21 16:00	109	2.52
−24 h	2019-05-21 04:00	95	2.43
−48 h	2019-05-20 04:00	122	2.58
−72 h	2019-05-19 04:00	172	2.81

2019-04-13 19:00 CDT · peak Flood 10,725 cfs · 13 dwells · 1.14" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-04-13 19:00 CDT

Peak2019-05-01 04:00 CDT — 10,725 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span777 h (32.4 days)

Baseline flow (min, 72 h pre-onset)158 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2019-04-13 19:00	2019-04-18 17:00	119 h (5.0 d)	835
High	rising	2019-04-18 18:00	2019-04-18 22:00	5 h	1,025
Moderate	rising	2019-04-18 23:00	2019-04-25 11:00	157 h (6.5 d)	878
Flood	rising	2019-04-25 12:00	2019-04-25 20:00	9 h	3,050
High	rising	2019-04-25 21:00	2019-04-26 06:00	10 h	1,568
Moderate	rising	2019-04-26 07:00	2019-05-01 00:00	114 h (4.8 d)	893
Flood	peak	2019-05-01 01:00	2019-05-02 01:00	25 h	10,725
High	falling	2019-05-02 02:00	2019-05-03 06:00	29 h	1,590
Moderate	falling	2019-05-03 07:00	2019-05-03 21:00	15 h	897
High	falling	2019-05-03 22:00	2019-05-04 11:00	14 h	1,182
Moderate	falling	2019-05-04 12:00	2019-05-06 10:00	47 h	894
High	falling	2019-05-06 11:00	2019-05-06 16:00	6 h	1,050
Moderate	falling	2019-05-06 17:00	2019-05-16 03:00	227 h (9.5 d)	865

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.27
preceding 6 h	0.81
preceding 12 h	1.14
preceding 24 h	1.14
preceding 48 h	1.14
preceding 72 h	1.14

Rain onset → crest5.40 in

Rain over full excursion8.81 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.21	1.21
Beech Creek	50	1.17	1.17
Smith Creek-Buffalo River	87	1.19	1.19
Whiteley Creek-Buffalo River	161	1.06	1.06

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-04-13 18:00	199	3.38
−3 h	2019-04-13 16:00	179	3.30
−6 h	2019-04-13 13:00	161	3.22
−12 h	2019-04-13 07:00	162	3.22
−24 h	2019-04-12 19:00	171	3.26
−48 h	2019-04-11 19:00	196	3.37
−72 h	2019-04-10 19:00	221	3.46

2019-04-06 20:00 CDT · peak Moderate 440 cfs · 1 dwells · 0.57" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-04-06 20:00 CDT

Peak2019-04-07 04:00 CDT — 440 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span116 h (4.8 days)

Baseline flow (min, 72 h pre-onset)162 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-04-06 20:00	2019-04-11 15:00	116 h (4.8 d)	440

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.42
preceding 6 h	0.57
preceding 12 h	0.57
preceding 24 h	0.57
preceding 48 h	0.57
preceding 72 h	0.99

Rain onset → crest0.00 in

Rain over full excursion0.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.62	1.13
Beech Creek	50	0.49	0.90
Smith Creek-Buffalo River	87	0.60	1.04
Whiteley Creek-Buffalo River	161	0.55	0.91

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-04-06 19:00	195	3.36
−3 h	2019-04-06 17:00	170	3.26
−6 h	2019-04-06 14:00	162	3.22
−12 h	2019-04-06 08:00	166	3.24
−24 h	2019-04-05 20:00	172	3.27
−48 h	2019-04-04 20:00	199	3.38
−72 h	2019-04-03 20:00	192	3.35

2019-03-29 13:00 CDT · peak Moderate 457 cfs · 1 dwells · 0.30" rain/24h

Onset (rise crosses 200 cfs)Fri 2019-03-29 13:00 CDT

Peak2019-03-29 17:00 CDT — 457 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span120 h (5.0 days)

Baseline flow (min, 72 h pre-onset)158 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-03-29 13:00	2019-04-03 12:00	120 h (5.0 d)	457

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.22
preceding 3 h	0.30
preceding 6 h	0.30
preceding 12 h	0.30
preceding 24 h	0.30
preceding 48 h	0.30
preceding 72 h	0.30

Rain onset → crest0.22 in

Rain over full excursion0.47 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.08	0.08
Beech Creek	50	0.35	0.35
Smith Creek-Buffalo River	87	0.18	0.18
Whiteley Creek-Buffalo River ★	161	0.49	0.49

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-03-29 12:00	177	3.29
−3 h	2019-03-29 10:00	158	3.20
−6 h	2019-03-29 07:00	159	3.21
−12 h	2019-03-29 01:00	161	3.22
−24 h	2019-03-28 13:00	169	3.25
−48 h	2019-03-27 13:00	182	3.31
−72 h	2019-03-26 13:00	207	3.41

2019-03-25 01:00 CDT · peak Moderate 322 cfs · 1 dwells · 0.55" rain/24h

Onset (rise crosses 200 cfs)Mon 2019-03-25 01:00 CDT

Peak2019-03-25 06:00 CDT — 322 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span40 h (1.7 days)

Baseline flow (min, 72 h pre-onset)126 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-03-25 01:00	2019-03-26 16:00	40 h	322

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.08
preceding 12 h	0.34
preceding 24 h	0.55
preceding 48 h	0.95
preceding 72 h	0.95

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.82	1.27
Beech Creek	50	0.69	1.09
Smith Creek-Buffalo River	87	0.59	0.99
Whiteley Creek-Buffalo River	161	0.32	0.70

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-03-25 00:00	199	3.38
−3 h	2019-03-24 22:00	190	3.34
−6 h	2019-03-24 19:00	190	3.34
−12 h	2019-03-24 13:00	172	3.27
−24 h	2019-03-24 01:00	130	3.07
−48 h	2019-03-23 01:00	133	3.08
−72 h	2019-03-22 01:00	150	3.16

2019-03-09 12:00 CST · peak High 933 cfs · 1 dwells · 0.55" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-03-09 12:00 CST

Peak2019-03-13 23:00 CDT — 933 cfs (High)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span240 h (10.0 days)

Baseline flow (min, 72 h pre-onset)85 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-03-09 12:00	2019-03-19 12:00	240 h (10.0 d)	933

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.02
preceding 6 h	0.53
preceding 12 h	0.55
preceding 24 h	0.55
preceding 48 h	0.56
preceding 72 h	0.56

Rain onset → crest1.52 in

Rain over full excursion1.52 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.59	0.61
Beech Creek ★	50	0.63	0.63
Smith Creek-Buffalo River	87	0.58	0.59
Whiteley Creek-Buffalo River	161	0.49	0.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-03-09 11:00	194	3.35
−3 h	2019-03-09 09:00	132	3.08
−6 h	2019-03-09 06:00	86	2.81
−12 h	2019-03-09 00:00	86	2.81
−24 h	2019-03-08 12:00	87	2.81
−48 h	2019-03-07 12:00	89	2.83
−72 h	2019-03-06 12:00	99	2.89

2019-02-06 12:00 CST · peak Flood 8,102 cfs · 9 dwells · 0.69" rain/24h

Onset (rise crosses 200 cfs)Wed 2019-02-06 12:00 CST

Peak2019-02-07 08:00 CST — 8,102 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span536 h (22.3 days)

Baseline flow (min, 72 h pre-onset)92 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2019-02-06 12:00	2019-02-07 04:00	17 h	846
Flood	peak	2019-02-07 05:00	2019-02-07 22:00	18 h	8,102
High	falling	2019-02-07 23:00	2019-02-08 12:00	14 h	1,598
Moderate	falling	2019-02-08 13:00	2019-02-11 00:00	60 h (2.5 d)	886
Flood	falling	2019-02-11 04:00	2019-02-12 10:00	31 h	3,632
High	falling	2019-02-12 11:00	2019-02-13 04:00	18 h	1,575
Moderate	falling	2019-02-13 05:00	2019-02-20 01:00	165 h (6.9 d)	888
High	falling	2019-02-20 02:00	2019-02-20 05:00	4 h	944
Moderate	falling	2019-02-20 06:00	2019-02-28 19:00	206 h (8.6 d)	888

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.06
preceding 3 h	0.16
preceding 6 h	0.34
preceding 12 h	0.69
preceding 24 h	0.69
preceding 48 h	0.69
preceding 72 h	0.69

Rain onset → crest1.23 in

Rain over full excursion4.90 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.75	0.75
Beech Creek	50	0.72	0.72
Smith Creek-Buffalo River	87	0.71	0.71
Whiteley Creek-Buffalo River	161	0.65	0.65

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-02-06 11:00	175	3.36
−3 h	2019-02-06 09:00	132	3.17
−6 h	2019-02-06 06:00	106	3.04
−12 h	2019-02-06 00:00	92	2.97
−24 h	2019-02-05 12:00	97	3.00
−48 h	2019-02-04 12:00	107	3.06
−72 h	2019-02-03 12:00	114	3.10

2019-01-19 06:00 CST · peak High 1,218 cfs · 3 dwells · 0.29" rain/24h

Onset (rise crosses 200 cfs)Sat 2019-01-19 06:00 CST

Peak2019-01-23 05:00 CST — 1,218 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span237 h (9.9 days)

Baseline flow (min, 72 h pre-onset)180 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2019-01-19 06:00	2019-01-23 02:00	93 h (3.9 d)	893
High	peak	2019-01-23 03:00	2019-01-23 11:00	9 h	1,218
Moderate	falling	2019-01-23 12:00	2019-01-29 02:00	135 h (5.6 d)	877

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.09
preceding 6 h	0.28
preceding 12 h	0.29
preceding 24 h	0.29
preceding 48 h	0.29
preceding 72 h	0.32

Rain onset → crest0.77 in

Rain over full excursion0.87 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.31	0.33
Beech Creek	50	0.26	0.30
Smith Creek-Buffalo River ★	87	0.31	0.35
Whiteley Creek-Buffalo River	161	0.27	0.31

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-01-19 05:00	196	3.49
−3 h	2019-01-19 03:00	191	3.47
−6 h	2019-01-19 00:00	180	3.42
−12 h	2019-01-18 18:00	182	3.43
−24 h	2019-01-18 06:00	192	3.46
−48 h	2019-01-17 06:00	207	3.53
−72 h	2019-01-16 06:00	226	3.59

2019-01-11 15:00 CST · peak Moderate 487 cfs · 1 dwells · 0.90" rain/24h

Onset (rise crosses 200 cfs)Fri 2019-01-11 15:00 CST

Peak2019-01-12 15:00 CST — 487 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span152 h (6.3 days)

Baseline flow (min, 72 h pre-onset)176 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2019-01-11 15:00	2019-01-17 22:00	152 h (6.3 d)	487

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.08
preceding 3 h	0.30
preceding 6 h	0.39
preceding 12 h	0.73
preceding 24 h	0.90
preceding 48 h	0.90
preceding 72 h	0.90

Rain onset → crest0.65 in

Rain over full excursion0.69 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.81	0.81
Beech Creek	50	0.93	0.93
Smith Creek-Buffalo River	87	0.90	0.90
Whiteley Creek-Buffalo River ★	161	0.94	0.94

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2019-01-11 14:00	196	3.48
−3 h	2019-01-11 12:00	184	3.43
−6 h	2019-01-11 09:00	182	3.42
−12 h	2019-01-11 03:00	177	3.40
−24 h	2019-01-10 15:00	187	3.45
−48 h	2019-01-09 15:00	218	3.57
−72 h	2019-01-08 15:00	272	3.75

2018-12-27 03:00 CST · peak Flood 5,658 cfs · 6 dwells · 1.10" rain/24h

Onset (rise crosses 200 cfs)Thu 2018-12-27 03:00 CST

Peak2018-12-27 09:00 CST — 5,658 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span339 h (14.1 days)

Baseline flow (min, 72 h pre-onset)97 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2018-12-27 06:00	2018-12-27 22:00	17 h	5,658
High	falling	2018-12-27 23:00	2018-12-28 09:00	11 h	1,508
Moderate	falling	2018-12-28 10:00	2019-01-04 02:00	161 h (6.7 d)	880
Flood	falling	2019-01-04 03:00	2019-01-04 20:00	18 h	5,428
High	falling	2019-01-04 21:00	2019-01-05 09:00	13 h	1,530
Moderate	falling	2019-01-05 10:00	2019-01-10 05:00	116 h (4.8 d)	887

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.25
preceding 3 h	0.56
preceding 6 h	0.98
preceding 12 h	1.09
preceding 24 h	1.10
preceding 48 h	1.10
preceding 72 h	1.10

Rain onset → crest0.74 in

Rain over full excursion3.09 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.21	1.21
Beech Creek	50	1.18	1.18
Smith Creek-Buffalo River	87	1.08	1.08
Whiteley Creek-Buffalo River	161	1.02	1.02

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-12-27 02:00	142	3.25
−3 h	2018-12-27 00:00	112	3.09
−6 h	2018-12-26 21:00	100	3.02
−12 h	2018-12-26 15:00	99	3.01
−24 h	2018-12-26 03:00	102	3.03
−48 h	2018-12-25 03:00	112	3.09
−72 h	2018-12-24 03:00	124	3.15

2018-12-13 21:00 CST · peak Flood 1,635 cfs · 3 dwells · 1.05" rain/24h

Onset (rise crosses 200 cfs)Thu 2018-12-13 21:00 CST

Peak2018-12-15 03:00 CST — 1,635 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span171 h (7.1 days)

Baseline flow (min, 72 h pre-onset)76 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2018-12-13 21:00	2018-12-14 20:00	24 h	882
High	peak	2018-12-14 21:00	2018-12-15 18:00	22 h	1,635
Moderate	falling	2018-12-15 19:00	2018-12-20 23:00	125 h (5.2 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.11
preceding 6 h	0.36
preceding 12 h	0.53
preceding 24 h	1.05
preceding 48 h	1.05
preceding 72 h	1.05

Rain onset → crest0.70 in

Rain over full excursion0.79 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.06	1.06
Beech Creek	50	0.94	0.94
Smith Creek-Buffalo River ★	87	1.07	1.07
Whiteley Creek-Buffalo River	161	1.06	1.06

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-12-13 20:00	165	3.35
−3 h	2018-12-13 18:00	127	3.17
−6 h	2018-12-13 15:00	100	3.02
−12 h	2018-12-13 09:00	85	2.92
−24 h	2018-12-12 21:00	77	2.87
−48 h	2018-12-11 21:00	82	2.90
−72 h	2018-12-10 21:00	92	2.97

2018-11-30 21:00 CST · peak Flood 2,232 cfs · 3 dwells · 1.06" rain/24h

Onset (rise crosses 200 cfs)Fri 2018-11-30 21:00 CST

Peak2018-12-01 06:00 CST — 2,232 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span100 h (4.2 days)

Baseline flow (min, 72 h pre-onset)23 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2018-12-01 03:00	2018-12-01 10:00	8 h	2,232
High	falling	2018-12-01 11:00	2018-12-01 17:00	7 h	1,465
Moderate	falling	2018-12-01 18:00	2018-12-05 00:00	79 h (3.3 d)	899

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.11
preceding 3 h	1.06
preceding 6 h	1.06
preceding 12 h	1.06
preceding 24 h	1.06
preceding 48 h	1.06
preceding 72 h	1.06

Rain onset → crest0.44 in

Rain over full excursion0.44 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.05	1.05
Beech Creek ★	50	1.28	1.28
Smith Creek-Buffalo River	87	1.05	1.05
Whiteley Creek-Buffalo River	161	1.00	1.00

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-11-30 20:00	104	2.96
−3 h	2018-11-30 18:00	24	2.31
−6 h	2018-11-30 15:00	23	2.31
−12 h	2018-11-30 09:00	23	2.30
−24 h	2018-11-29 21:00	24	2.31
−48 h	2018-11-28 21:00	24	2.32
−72 h	2018-11-27 21:00	25	2.33

2018-10-31 21:00 CDT · peak Flood 2,268 cfs · 3 dwells · 1.68" rain/24h

Onset (rise crosses 200 cfs)Wed 2018-10-31 21:00 CDT

Peak2018-11-01 01:00 CDT — 2,268 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span174 h (7.2 days)

Baseline flow (min, 72 h pre-onset)26 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2018-10-31 23:00	2018-11-01 05:00	7 h	2,268
High	falling	2018-11-01 06:00	2018-11-01 12:00	7 h	1,475
Moderate	falling	2018-11-01 13:00	2018-11-08 01:00	158 h (6.6 d)	868

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.18
preceding 3 h	0.48
preceding 6 h	0.88
preceding 12 h	1.46
preceding 24 h	1.68
preceding 48 h	1.68
preceding 72 h	1.68

Rain onset → crest0.15 in

Rain over full excursion1.19 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.10	2.10
Beech Creek	50	1.67	1.67
Smith Creek-Buffalo River	87	1.76	1.76
Whiteley Creek-Buffalo River	161	1.39	1.39

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-10-31 20:00	147	3.27
−3 h	2018-10-31 18:00	67	2.79
−6 h	2018-10-31 15:00	37	2.50
−12 h	2018-10-31 09:00	27	2.37
−24 h	2018-10-30 21:00	26	2.35
−48 h	2018-10-29 21:00	28	2.38
−72 h	2018-10-28 21:00	31	2.42

2018-10-20 06:00 CDT · peak Moderate 240 cfs · 1 dwells · 1.00" rain/24h

Onset (rise crosses 200 cfs)Sat 2018-10-20 06:00 CDT

Peak2018-10-20 08:00 CDT — 240 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span11 h (0.5 days)

Baseline flow (min, 72 h pre-onset)42 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-10-20 06:00	2018-10-20 16:00	11 h	240

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.04
preceding 24 h	1.00
preceding 48 h	1.00
preceding 72 h	1.00

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.05	1.05
Beech Creek	50	0.94	0.94
Smith Creek-Buffalo River	87	0.99	0.99
Whiteley Creek-Buffalo River	161	1.00	1.00

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-10-20 05:00	199	3.50
−3 h	2018-10-20 03:00	160	3.33
−6 h	2018-10-20 00:00	131	3.19
−12 h	2018-10-19 18:00	71	2.81
−24 h	2018-10-19 06:00	43	2.56
−48 h	2018-10-18 06:00	54	2.67
−72 h	2018-10-17 06:00	71	2.81

2018-08-20 00:00 CDT · peak Moderate 288 cfs · 1 dwells · 0.63" rain/24h

Onset (rise crosses 200 cfs)Mon 2018-08-20 00:00 CDT

Peak2018-08-20 02:00 CDT — 288 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span8 h (0.3 days)

Baseline flow (min, 72 h pre-onset)55 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-08-20 00:00	2018-08-20 07:00	8 h	288

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.01
preceding 6 h	0.24
preceding 12 h	0.63
preceding 24 h	0.63
preceding 48 h	0.63
preceding 72 h	1.84

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.34	1.33
Beech Creek ★	50	1.02	2.28
Smith Creek-Buffalo River	87	0.56	1.67
Whiteley Creek-Buffalo River	161	0.71	2.10

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-08-19 23:00	199	3.50
−3 h	2018-08-19 21:00	154	3.31
−6 h	2018-08-19 18:00	119	3.13
−12 h	2018-08-19 12:00	82	2.90
−24 h	2018-08-19 00:00	113	3.10
−48 h	2018-08-18 00:00	343	3.96
−72 h	2018-08-17 00:00	65	2.77

2018-08-17 13:00 CDT · peak Moderate 398 cfs · 1 dwells · 1.50" rain/24h

Onset (rise crosses 200 cfs)Fri 2018-08-17 13:00 CDT

Peak2018-08-17 21:00 CDT — 398 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span20 h (0.8 days)

Baseline flow (min, 72 h pre-onset)23 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-08-17 13:00	2018-08-18 08:00	20 h	398

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.50
preceding 6 h	1.10
preceding 12 h	1.18
preceding 24 h	1.50
preceding 48 h	1.86
preceding 72 h	2.46

Rain onset → crest0.02 in

Rain over full excursion0.04 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.58	2.41
Beech Creek	50	1.42	2.38
Smith Creek-Buffalo River	87	1.39	2.27
Whiteley Creek-Buffalo River ★	161	1.53	2.63

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-08-17 12:00	165	3.35
−3 h	2018-08-17 10:00	96	2.99
−6 h	2018-08-17 07:00	56	2.69
−12 h	2018-08-17 01:00	64	2.76
−24 h	2018-08-16 13:00	86	2.92
−48 h	2018-08-15 13:00	75	2.85
−72 h	2018-08-14 13:00	31	2.42

2018-05-25 23:00 CDT · peak Moderate 388 cfs · 1 dwells · 0.53" rain/24h

Onset (rise crosses 200 cfs)Fri 2018-05-25 23:00 CDT

Peak2018-05-26 06:00 CDT — 388 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span30 h (1.2 days)

Baseline flow (min, 72 h pre-onset)41 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-05-25 23:00	2018-05-27 04:00	30 h	388

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.19
preceding 6 h	0.53
preceding 12 h	0.53
preceding 24 h	0.53
preceding 48 h	1.02
preceding 72 h	2.08

Rain onset → crest0.13 in

Rain over full excursion0.13 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.51	1.69
Beech Creek	50	0.55	2.44
Smith Creek-Buffalo River ★	87	0.61	2.45
Whiteley Creek-Buffalo River	161	0.49	1.98

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-05-25 22:00	176	3.34
−3 h	2018-05-25 20:00	163	3.29
−6 h	2018-05-25 17:00	168	3.31
−12 h	2018-05-25 11:00	192	3.41
−24 h	2018-05-24 23:00	266	3.67
−48 h	2018-05-23 23:00	412	4.08
−72 h	2018-05-22 23:00	47	2.55

2018-05-23 19:00 CDT · peak Moderate 436 cfs · 1 dwells · 1.05" rain/24h

Onset (rise crosses 200 cfs)Wed 2018-05-23 19:00 CDT

Peak2018-05-24 01:00 CDT — 436 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span39 h (1.6 days)

Baseline flow (min, 72 h pre-onset)34 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-05-23 19:00	2018-05-25 09:00	39 h	436

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.13
preceding 3 h	0.48
preceding 6 h	1.03
preceding 12 h	1.05
preceding 24 h	1.05
preceding 48 h	1.21
preceding 72 h	1.87

Rain onset → crest0.01 in

Rain over full excursion0.50 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.71	1.47
Beech Creek ★	50	1.27	2.67
Smith Creek-Buffalo River	87	1.37	2.13
Whiteley Creek-Buffalo River	161	1.00	1.71

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-05-23 18:00	154	3.24
−3 h	2018-05-23 16:00	70	2.75
−6 h	2018-05-23 13:00	41	2.48
−12 h	2018-05-23 07:00	43	2.50
−24 h	2018-05-22 19:00	52	2.59
−48 h	2018-05-21 19:00	36	2.42
−72 h	2018-05-20 19:00	37	2.43

2018-05-03 04:00 CDT · peak Flood 6,665 cfs · 5 dwells · 0.79" rain/24h

Onset (rise crosses 200 cfs)Thu 2018-05-03 04:00 CDT

Peak2018-05-03 16:00 CDT — 6,665 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span158 h (6.6 days)

Baseline flow (min, 72 h pre-onset)154 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2018-05-03 04:00	2018-05-03 09:00	6 h	614
High	rising	2018-05-03 10:00	2018-05-03 13:00	4 h	1,460
Flood	peak	2018-05-03 14:00	2018-05-04 07:00	18 h	6,665
High	falling	2018-05-04 08:00	2018-05-04 21:00	14 h	1,555
Moderate	falling	2018-05-04 22:00	2018-05-09 17:00	116 h (4.8 d)	889

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.23
preceding 3 h	0.77
preceding 6 h	0.79
preceding 12 h	0.79
preceding 24 h	0.79
preceding 48 h	0.79
preceding 72 h	0.79

Rain onset → crest1.20 in

Rain over full excursion1.27 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.02	1.02
Beech Creek	50	0.74	0.74
Smith Creek-Buffalo River	87	0.93	0.93
Whiteley Creek-Buffalo River	161	0.61	0.61

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-05-03 03:00	194	3.40
−3 h	2018-05-03 01:00	155	3.23
−6 h	2018-05-02 22:00	156	3.24
−12 h	2018-05-02 16:00	162	3.26
−24 h	2018-05-02 04:00	172	3.30
−48 h	2018-05-01 04:00	195	3.40
−72 h	2018-04-30 04:00	220	3.50

2018-04-22 09:00 CDT · peak Moderate 463 cfs · 1 dwells · 0.75" rain/24h

Onset (rise crosses 200 cfs)Sun 2018-04-22 09:00 CDT

Peak2018-04-26 08:00 CDT — 463 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span205 h (8.5 days)

Baseline flow (min, 72 h pre-onset)141 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-04-22 09:00	2018-04-30 21:00	205 h (8.5 d)	463

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.22
preceding 6 h	0.39
preceding 12 h	0.62
preceding 24 h	0.75
preceding 48 h	0.77
preceding 72 h	0.77

Rain onset → crest0.90 in

Rain over full excursion0.90 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.77	0.78
Beech Creek ★	50	0.85	0.87
Smith Creek-Buffalo River	87	0.70	0.72
Whiteley Creek-Buffalo River	161	0.74	0.77

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-04-22 08:00	197	3.41
−3 h	2018-04-22 06:00	162	3.26
−6 h	2018-04-22 03:00	148	3.20
−12 h	2018-04-21 21:00	142	3.17
−24 h	2018-04-21 09:00	148	3.20
−48 h	2018-04-20 09:00	162	3.26
−72 h	2018-04-19 09:00	183	3.35

2018-04-13 19:00 CDT · peak Moderate 862 cfs · 1 dwells · 0.50" rain/24h

Onset (rise crosses 200 cfs)Fri 2018-04-13 19:00 CDT

Peak2018-04-14 05:00 CDT — 862 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span125 h (5.2 days)

Baseline flow (min, 72 h pre-onset)124 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-04-13 19:00	2018-04-18 23:00	125 h (5.2 d)	862

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.43
preceding 3 h	0.49
preceding 6 h	0.50
preceding 12 h	0.50
preceding 24 h	0.50
preceding 48 h	0.50
preceding 72 h	0.50

Rain onset → crest0.76 in

Rain over full excursion0.76 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.57	0.57
Beech Creek ★	50	0.63	0.63
Smith Creek-Buffalo River	87	0.36	0.36
Whiteley Creek-Buffalo River	161	0.49	0.49

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-04-13 18:00	128	3.10
−3 h	2018-04-13 16:00	124	3.08
−6 h	2018-04-13 13:00	124	3.08
−12 h	2018-04-13 07:00	126	3.09
−24 h	2018-04-12 19:00	133	3.12
−48 h	2018-04-11 19:00	146	3.19
−72 h	2018-04-10 19:00	165	3.27

2018-03-27 10:00 CDT · peak Flood 7,325 cfs · 7 dwells · 0.51" rain/24h

Onset (rise crosses 200 cfs)Tue 2018-03-27 10:00 CDT

Peak2018-03-27 13:00 CDT — 7,325 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span315 h (13.1 days)

Baseline flow (min, 72 h pre-onset)45 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2018-03-27 11:00	2018-03-28 15:00	29 h	7,325
High	falling	2018-03-28 16:00	2018-03-29 08:00	17 h	1,540
Flood	falling	2018-03-29 09:00	2018-03-30 01:00	17 h	4,080
High	falling	2018-03-30 02:00	2018-03-30 18:00	17 h	1,572
Moderate	falling	2018-03-30 19:00	2018-04-01 02:00	32 h	881
High	falling	2018-04-01 03:00	2018-04-01 13:00	11 h	1,205
Moderate	falling	2018-04-01 14:00	2018-04-09 12:00	191 h (8.0 d)	900

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.33
preceding 3 h	0.42
preceding 6 h	0.42
preceding 12 h	0.46
preceding 24 h	0.51
preceding 48 h	0.78
preceding 72 h	0.78

Rain onset → crest0.71 in

Rain over full excursion3.35 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.37	0.67
Beech Creek ★	50	0.57	0.88
Smith Creek-Buffalo River	87	0.39	0.69
Whiteley Creek-Buffalo River	161	0.63	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-03-27 09:00	61	2.65
−3 h	2018-03-27 07:00	45	2.50
−6 h	2018-03-27 04:00	46	2.51
−12 h	2018-03-26 22:00	46	2.51
−24 h	2018-03-26 10:00	46	2.51
−48 h	2018-03-25 10:00	46	2.52
−72 h	2018-03-24 10:00	49	2.55

2018-02-20 20:00 CST · peak Flood 6,310 cfs · 9 dwells · 0.90" rain/24h

Onset (rise crosses 200 cfs)Tue 2018-02-20 20:00 CST

Peak2018-02-24 18:00 CST — 6,310 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span354 h (14.8 days)

Baseline flow (min, 72 h pre-onset)25 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	rising	2018-02-20 22:00	2018-02-21 17:00	20 h	4,765
High	rising	2018-02-21 18:00	2018-02-22 09:00	16 h	1,505
Moderate	rising	2018-02-22 10:00	2018-02-23 01:00	16 h	895
High	rising	2018-02-23 02:00	2018-02-23 09:00	8 h	1,032
Moderate	rising	2018-02-23 10:00	2018-02-23 19:00	10 h	886
High	rising	2018-02-23 20:00	2018-02-24 13:00	18 h	1,535
Flood	peak	2018-02-24 14:00	2018-02-25 08:00	19 h	6,310
High	falling	2018-02-25 09:00	2018-02-26 00:00	16 h	1,575
Moderate	falling	2018-02-26 01:00	2018-03-07 13:00	229 h (9.5 d)	895

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.27
preceding 3 h	0.58
preceding 6 h	0.60
preceding 12 h	0.76
preceding 24 h	0.90
preceding 48 h	1.02
preceding 72 h	1.02

Rain onset → crest2.95 in

Rain over full excursion4.40 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.08	1.25
Beech Creek	50	0.95	1.10
Smith Creek-Buffalo River	87	0.91	1.04
Whiteley Creek-Buffalo River	161	0.77	0.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-02-20 19:00	162	3.38
−3 h	2018-02-20 17:00	69	2.87
−6 h	2018-02-20 14:00	58	2.78
−12 h	2018-02-20 08:00	54	2.74
−24 h	2018-02-19 20:00	51	2.71
−48 h	2018-02-18 20:00	46	2.66
−72 h	2018-02-17 20:00	25	2.40

2018-01-22 05:00 CST · peak High 1,165 cfs · 1 dwells · 1.12" rain/24h

Onset (rise crosses 200 cfs)Mon 2018-01-22 05:00 CST

Peak2018-01-22 06:00 CST — 1,165 cfs (High)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span37 h (1.5 days)

Baseline flow (min, 72 h pre-onset)10 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2018-01-22 05:00	2018-01-23 17:00	37 h	1,165

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.23
preceding 12 h	1.10
preceding 24 h	1.12
preceding 48 h	1.12
preceding 72 h	1.12

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.22	1.22
Beech Creek	50	1.08	1.08
Smith Creek-Buffalo River	87	1.12	1.12
Whiteley Creek-Buffalo River	161	1.07	1.07

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2018-01-22 04:00	148	3.35
−3 h	2018-01-22 02:00	144	3.33
−6 h	2018-01-21 23:00	31	2.48
−12 h	2018-01-21 17:00	10	2.10
−24 h	2018-01-21 05:00	10	2.10
−48 h	2018-01-20 05:00	11	2.12
−72 h	2018-01-19 05:00	11	2.13

2017-08-23 12:00 CDT · peak Moderate 308 cfs · 1 dwells · 0.39" rain/24h

Onset (rise crosses 200 cfs)Wed 2017-08-23 12:00 CDT

Peak2017-08-23 14:00 CDT — 308 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span46 h (1.9 days)

Baseline flow (min, 72 h pre-onset)161 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-08-23 12:00	2017-08-25 09:00	46 h	308

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.01
preceding 12 h	0.39
preceding 24 h	0.39
preceding 48 h	0.63
preceding 72 h	0.63

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.85	1.13
Beech Creek	50	0.26	0.57
Smith Creek-Buffalo River	87	0.36	0.66
Whiteley Creek-Buffalo River	161	0.17	0.35

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-08-23 11:00	192	3.23
−3 h	2017-08-23 09:00	194	3.24
−6 h	2017-08-23 06:00	168	3.04
−12 h	2017-08-23 00:00	161	2.99
−24 h	2017-08-22 12:00	168	3.04
−48 h	2017-08-21 12:00	194	3.24
−72 h	2017-08-20 12:00	233	3.55

2017-08-17 06:00 CDT · peak Moderate 899 cfs · 1 dwells · 1.05" rain/24h

Onset (rise crosses 200 cfs)Thu 2017-08-17 06:00 CDT

Peak2017-08-17 11:00 CDT — 899 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span98 h (4.1 days)

Baseline flow (min, 72 h pre-onset)19 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-08-17 06:00	2017-08-21 07:00	98 h (4.1 d)	899

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.15
preceding 3 h	0.53
preceding 6 h	1.04
preceding 12 h	1.04
preceding 24 h	1.05
preceding 48 h	1.43
preceding 72 h	2.19

Rain onset → crest0.00 in

Rain over full excursion0.72 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.25	2.99
Beech Creek	50	1.06	2.11
Smith Creek-Buffalo River	87	1.05	2.09
Whiteley Creek-Buffalo River	161	0.93	1.82

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-08-17 05:00	198	3.31
−3 h	2017-08-17 03:00	187	3.23
−6 h	2017-08-17 00:00	179	3.17
−12 h	2017-08-16 18:00	190	3.26
−24 h	2017-08-16 06:00	200	3.35
−48 h	2017-08-15 06:00	33	2.18
−72 h	2017-08-14 06:00	19	2.07

2017-08-15 20:00 CDT · peak Moderate 232 cfs · 1 dwells · 0.38" rain/24h

Onset (rise crosses 200 cfs)Tue 2017-08-15 20:00 CDT

Peak2017-08-15 21:00 CDT — 232 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span11 h (0.5 days)

Baseline flow (min, 72 h pre-onset)13 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-08-15 20:00	2017-08-16 06:00	11 h	232

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.11
preceding 24 h	0.38
preceding 48 h	0.87
preceding 72 h	1.16

Rain onset → crest0.00 in

Rain over full excursion0.27 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.86	1.80
Beech Creek	50	0.38	1.16
Smith Creek-Buffalo River	87	0.28	1.16
Whiteley Creek-Buffalo River	161	0.17	0.79

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-08-15 19:00	76	2.47
−3 h	2017-08-15 17:00	37	2.21
−6 h	2017-08-15 14:00	39	2.23
−12 h	2017-08-15 08:00	35	2.20
−24 h	2017-08-14 20:00	26	2.12
−48 h	2017-08-13 20:00	20	2.08
−72 h	2017-08-12 20:00	13	2.04

2017-07-04 19:00 CDT · peak Moderate 212 cfs · 1 dwells · 0.75" rain/24h

Onset (rise crosses 200 cfs)Tue 2017-07-04 19:00 CDT

Peak2017-07-04 21:00 CDT — 212 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span16 h (0.7 days)

Baseline flow (min, 72 h pre-onset)95 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-07-04 19:00	2017-07-05 10:00	16 h	212

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.01
preceding 6 h	0.15
preceding 12 h	0.22
preceding 24 h	0.75
preceding 48 h	1.73
preceding 72 h	1.74

Rain onset → crest0.05 in

Rain over full excursion0.05 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.61	1.76
Beech Creek	50	0.73	1.68
Smith Creek-Buffalo River	87	0.73	1.72
Whiteley Creek-Buffalo River ★	161	0.86	1.76

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-07-04 18:00	192	3.18
−3 h	2017-07-04 16:00	178	3.07
−6 h	2017-07-04 13:00	175	3.05
−12 h	2017-07-04 07:00	168	3.00
−24 h	2017-07-03 19:00	112	2.58
−48 h	2017-07-02 19:00	116	2.60
−72 h	2017-07-01 19:00	85	2.38

2017-06-04 18:00 CDT · peak Flood 3,462 cfs · 3 dwells · 0.98" rain/24h

Onset (rise crosses 200 cfs)Sun 2017-06-04 18:00 CDT

Peak2017-06-04 19:00 CDT — 3,462 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span164 h (6.8 days)

Baseline flow (min, 72 h pre-onset)166 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2017-06-04 19:00	2017-06-04 22:00	4 h	3,462
High	falling	2017-06-04 23:00	2017-06-05 05:00	7 h	1,562
Moderate	falling	2017-06-05 06:00	2017-06-11 13:00	152 h (6.3 d)	863

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.31
preceding 6 h	0.93
preceding 12 h	0.98
preceding 24 h	0.98
preceding 48 h	1.16
preceding 72 h	1.21

Rain onset → crest0.00 in

Rain over full excursion0.43 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.72	1.98
Beech Creek	50	0.76	0.98
Smith Creek-Buffalo River	87	0.99	1.33
Whiteley Creek-Buffalo River	161	0.62	0.79

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-06-04 17:00	180	2.86
−3 h	2017-06-04 15:00	172	2.79
−6 h	2017-06-04 12:00	166	2.75
−12 h	2017-06-04 06:00	166	2.75
−24 h	2017-06-03 18:00	168	2.77
−48 h	2017-06-02 18:00	175	2.82
−72 h	2017-06-01 18:00	187	2.92

2017-04-17 07:00 CDT · peak Flood 25,450 cfs · 18 dwells · 1.06" rain/24h

Onset (rise crosses 200 cfs)Mon 2017-04-17 07:00 CDT

Peak2017-04-29 19:00 CDT — 25,450 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span1055 h (44.0 days)

Baseline flow (min, 72 h pre-onset)153 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2017-04-17 07:00	2017-04-21 09:00	99 h (4.1 d)	404
Flood	rising	2017-04-21 11:00	2017-04-22 18:00	32 h	11,675
High	rising	2017-04-22 19:00	2017-04-23 05:00	11 h	1,548
Moderate	rising	2017-04-23 06:00	2017-04-26 08:00	75 h (3.1 d)	876
Flood	rising	2017-04-26 09:00	2017-04-27 06:00	22 h	11,625
High	rising	2017-04-27 07:00	2017-04-27 16:00	10 h	1,520
Moderate	rising	2017-04-27 17:00	2017-04-29 14:00	46 h	877
Flood	peak	2017-04-29 15:00	2017-05-01 06:00	40 h	25,450
High	falling	2017-05-01 07:00	2017-05-02 01:00	19 h	1,562
Moderate	falling	2017-05-02 02:00	2017-05-04 04:00	51 h (2.1 d)	886
High	falling	2017-05-04 05:00	2017-05-04 16:00	12 h	1,030
Moderate	falling	2017-05-04 17:00	2017-05-12 13:00	189 h (7.9 d)	894
Flood	falling	2017-05-12 15:00	2017-05-12 19:00	5 h	2,710
High	falling	2017-05-12 20:00	2017-05-13 02:00	7 h	1,505
Moderate	falling	2017-05-13 03:00	2017-05-20 02:00	168 h (7.0 d)	869
Flood	falling	2017-05-20 03:00	2017-05-21 02:00	24 h	7,695
High	falling	2017-05-21 03:00	2017-05-21 16:00	14 h	1,530
Moderate	falling	2017-05-21 17:00	2017-05-31 05:00	229 h (9.5 d)	862

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.06
preceding 3 h	0.28
preceding 6 h	0.63
preceding 12 h	0.64
preceding 24 h	1.06
preceding 48 h	1.06
preceding 72 h	1.06

Rain onset → crest8.23 in

Rain over full excursion15.67 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.13	1.13
Beech Creek ★	50	1.23	1.23
Smith Creek-Buffalo River	87	1.15	1.15
Whiteley Creek-Buffalo River	161	0.92	0.92

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-04-17 06:00	190	2.90
−3 h	2017-04-17 04:00	182	2.83
−6 h	2017-04-17 01:00	176	2.79
−12 h	2017-04-16 19:00	171	2.75
−24 h	2017-04-16 07:00	154	2.62
−48 h	2017-04-15 07:00	163	2.69
−72 h	2017-04-14 07:00	172	2.77

2017-03-24 23:00 CDT · peak Flood 5,492 cfs · 7 dwells · 1.07" rain/24h

Onset (rise crosses 200 cfs)Fri 2017-03-24 23:00 CDT

Peak2017-03-27 12:00 CDT — 5,492 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span432 h (18.0 days)

Baseline flow (min, 72 h pre-onset)107 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	rising	2017-03-25 02:00	2017-03-25 11:00	10 h	1,625
Flood	rising	2017-03-25 12:00	2017-03-25 15:00	4 h	1,788
High	rising	2017-03-25 16:00	2017-03-25 23:00	8 h	1,538
Moderate	rising	2017-03-26 00:00	2017-03-27 05:00	30 h	880
Flood	peak	2017-03-27 07:00	2017-03-27 22:00	16 h	5,492
High	falling	2017-03-27 23:00	2017-03-28 09:00	11 h	1,550
Moderate	falling	2017-03-28 10:00	2017-04-11 22:00	349 h (14.5 d)	866

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.07
preceding 3 h	0.64
preceding 6 h	1.02
preceding 12 h	1.07
preceding 24 h	1.07
preceding 48 h	1.07
preceding 72 h	1.33

Rain onset → crest1.61 in

Rain over full excursion3.85 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.20	1.30
Beech Creek ★	50	1.17	1.47
Smith Creek-Buffalo River	87	1.10	1.36
Whiteley Creek-Buffalo River	161	0.96	1.29

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-03-24 22:00	178	2.81
−3 h	2017-03-24 20:00	127	2.43
−6 h	2017-03-24 17:00	110	2.31
−12 h	2017-03-24 11:00	109	2.30
−24 h	2017-03-23 23:00	113	2.33
−48 h	2017-03-22 23:00	124	2.41
−72 h	2017-03-21 23:00	131	2.46

2017-03-09 22:00 CST · peak Moderate 408 cfs · 1 dwells · 0.46" rain/24h

Onset (rise crosses 200 cfs)Thu 2017-03-09 22:00 CST

Peak2017-03-12 01:00 CST — 408 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span172 h (7.2 days)

Baseline flow (min, 72 h pre-onset)97 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-03-09 22:00	2017-03-17 02:00	172 h (7.2 d)	408

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.46
preceding 3 h	0.46
preceding 6 h	0.46
preceding 12 h	0.46
preceding 24 h	0.46
preceding 48 h	0.46
preceding 72 h	1.41

Rain onset → crest1.10 in

Rain over full excursion1.41 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.08	0.55
Beech Creek	50	0.35	1.31
Smith Creek-Buffalo River	87	0.44	1.20
Whiteley Creek-Buffalo River ★	161	0.73	2.06

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-03-09 21:00	196	2.94
−3 h	2017-03-09 19:00	191	2.91
−6 h	2017-03-09 16:00	192	2.92
−12 h	2017-03-09 10:00	199	2.97
−24 h	2017-03-08 22:00	208	3.04
−48 h	2017-03-07 22:00	264	3.49
−72 h	2017-03-06 22:00	90	2.17

2017-03-07 03:00 CST · peak Moderate 320 cfs · 1 dwells · 0.92" rain/24h

Onset (rise crosses 200 cfs)Tue 2017-03-07 03:00 CST

Peak2017-03-07 09:00 CST — 320 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span55 h (2.3 days)

Baseline flow (min, 72 h pre-onset)88 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-03-07 03:00	2017-03-09 09:00	55 h (2.3 d)	320

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.42
preceding 6 h	0.85
preceding 12 h	0.90
preceding 24 h	0.92
preceding 48 h	0.92
preceding 72 h	0.92

Rain onset → crest0.19 in

Rain over full excursion0.19 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.35	0.37
Beech Creek	50	0.94	0.95
Smith Creek-Buffalo River	87	0.61	0.61
Whiteley Creek-Buffalo River ★	161	1.40	1.40

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-03-07 02:00	172	2.76
−3 h	2017-03-07 00:00	114	2.34
−6 h	2017-03-06 21:00	89	2.17
−12 h	2017-03-06 15:00	88	2.16
−24 h	2017-03-06 03:00	88	2.16
−48 h	2017-03-05 03:00	90	2.17
−72 h	2017-03-04 03:00	94	2.20

2017-02-14 17:00 CST · peak Moderate 502 cfs · 1 dwells · 1.90" rain/24h

Onset (rise crosses 200 cfs)Tue 2017-02-14 17:00 CST

Peak2017-02-15 01:00 CST — 502 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span64 h (2.7 days)

Baseline flow (min, 72 h pre-onset)37 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-02-14 17:00	2017-02-17 08:00	64 h (2.7 d)	502

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.08
preceding 3 h	0.21
preceding 6 h	0.56
preceding 12 h	1.26
preceding 24 h	1.90
preceding 48 h	1.90
preceding 72 h	1.90

Rain onset → crest0.27 in

Rain over full excursion0.27 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	2.03	2.03
Beech Creek	50	2.03	2.03
Smith Creek-Buffalo River ★	87	2.04	2.04
Whiteley Creek-Buffalo River	161	1.72	1.72

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-02-14 16:00	153	2.62
−3 h	2017-02-14 14:00	96	2.21
−6 h	2017-02-14 11:00	61	1.99
−12 h	2017-02-14 05:00	45	1.88
−24 h	2017-02-13 17:00	39	1.84
−48 h	2017-02-12 17:00	43	1.87
−72 h	2017-02-11 17:00	50	1.92

2017-01-22 14:00 CST · peak Moderate 253 cfs · 1 dwells · 1.01" rain/24h

Onset (rise crosses 200 cfs)Sun 2017-01-22 14:00 CST

Peak2017-01-22 20:00 CST — 253 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span26 h (1.1 days)

Baseline flow (min, 72 h pre-onset)81 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-01-22 14:00	2017-01-23 15:00	26 h	253

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.05
preceding 6 h	0.43
preceding 12 h	0.71
preceding 24 h	1.01
preceding 48 h	1.01
preceding 72 h	1.01

Rain onset → crest0.04 in

Rain over full excursion0.07 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.93	0.93
Beech Creek	50	0.97	0.97
Smith Creek-Buffalo River ★	87	1.20	1.20
Whiteley Creek-Buffalo River	161	0.97	0.97

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-01-22 13:00	178	2.81
−3 h	2017-01-22 11:00	123	2.40
−6 h	2017-01-22 08:00	96	2.21
−12 h	2017-01-22 02:00	84	2.13
−24 h	2017-01-21 14:00	82	2.12
−48 h	2017-01-20 14:00	99	2.23
−72 h	2017-01-19 14:00	116	2.35

2017-01-16 20:00 CST · peak Moderate 260 cfs · 1 dwells · 0.51" rain/24h

Onset (rise crosses 200 cfs)Mon 2017-01-16 20:00 CST

Peak2017-01-16 23:00 CST — 260 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span19 h (0.8 days)

Baseline flow (min, 72 h pre-onset)7 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2017-01-16 20:00	2017-01-17 14:00	19 h	260

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.14
preceding 24 h	0.51
preceding 48 h	0.54
preceding 72 h	0.92

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.67	1.10
Beech Creek	50	0.55	0.95
Smith Creek-Buffalo River	87	0.55	0.93
Whiteley Creek-Buffalo River	161	0.37	0.81

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2017-01-16 19:00	181	2.83
−3 h	2017-01-16 17:00	67	2.02
−6 h	2017-01-16 14:00	60	1.98
−12 h	2017-01-16 08:00	28	1.74
−24 h	2017-01-15 20:00	16	1.63
−48 h	2017-01-14 20:00	12	1.59
−72 h	2017-01-13 20:00	7	1.51

2016-09-17 01:00 CDT · peak Moderate 653 cfs · 1 dwells · 1.58" rain/24h

Onset (rise crosses 200 cfs)Sat 2016-09-17 01:00 CDT

Peak2016-09-17 02:00 CDT — 653 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span13 h (0.5 days)

Baseline flow (min, 72 h pre-onset)2 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-09-17 01:00	2016-09-17 13:00	13 h	653

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.18
preceding 12 h	1.58
preceding 24 h	1.58
preceding 48 h	2.09
preceding 72 h	2.27

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.44	3.15
Beech Creek	50	1.18	2.56
Smith Creek-Buffalo River	87	1.93	2.60
Whiteley Creek-Buffalo River	161	1.02	1.49

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-09-17 00:00	13	1.65
−3 h	2016-09-16 22:00	12	1.63
−6 h	2016-09-16 19:00	10	1.59
−12 h	2016-09-16 13:00	3	1.42
−24 h	2016-09-16 01:00	3	1.42
−48 h	2016-09-15 01:00	3	1.42
−72 h	2016-09-14 01:00	3	1.42

2016-08-14 21:00 CDT · peak Moderate 309 cfs · 1 dwells · 0.25" rain/24h

Onset (rise crosses 200 cfs)Sun 2016-08-14 21:00 CDT

Peak2016-08-15 07:00 CDT — 309 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span44 h (1.8 days)

Baseline flow (min, 72 h pre-onset)63 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-08-14 21:00	2016-08-16 16:00	44 h	309

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.04
preceding 12 h	0.24
preceding 24 h	0.25
preceding 48 h	0.65
preceding 72 h	1.11

Rain onset → crest0.00 in

Rain over full excursion0.34 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.34	1.46
Beech Creek	50	0.45	1.41
Smith Creek-Buffalo River	87	0.23	1.40
Whiteley Creek-Buffalo River	161	0.15	0.65

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-08-14 20:00	158	2.53
−3 h	2016-08-14 18:00	152	2.51
−6 h	2016-08-14 15:00	156	2.52
−12 h	2016-08-14 09:00	170	2.58
−24 h	2016-08-13 21:00	201	2.68
−48 h	2016-08-12 21:00	137	2.56
−72 h	2016-08-11 21:00	70	2.42

2016-08-12 23:00 CDT · peak Moderate 422 cfs · 1 dwells · 0.46" rain/24h

Onset (rise crosses 200 cfs)Fri 2016-08-12 23:00 CDT

Peak2016-08-13 00:00 CDT — 422 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span23 h (1.0 days)

Baseline flow (min, 72 h pre-onset)63 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-08-12 23:00	2016-08-13 21:00	23 h	422

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.02
preceding 12 h	0.46
preceding 24 h	0.46
preceding 48 h	0.76
preceding 72 h	0.85

Rain onset → crest0.00 in

Rain over full excursion0.40 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.46	1.05
Beech Creek ★	50	0.68	1.20
Smith Creek-Buffalo River	87	0.61	1.04
Whiteley Creek-Buffalo River	161	0.30	0.53

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-08-12 22:00	196	2.74
−3 h	2016-08-12 20:00	99	2.44
−6 h	2016-08-12 17:00	64	2.37
−12 h	2016-08-12 11:00	73	2.43
−24 h	2016-08-11 23:00	88	2.52
−48 h	2016-08-10 23:00	126	2.69
−72 h	2016-08-09 23:00	128	2.59

2016-08-10 03:00 CDT · peak Moderate 359 cfs · 1 dwells · 0.60" rain/24h

Onset (rise crosses 200 cfs)Wed 2016-08-10 03:00 CDT

Peak2016-08-10 04:00 CDT — 359 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span10 h (0.4 days)

Baseline flow (min, 72 h pre-onset)23 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-08-10 03:00	2016-08-10 12:00	10 h	359

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.41
preceding 24 h	0.60
preceding 48 h	2.28
preceding 72 h	3.62

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.41	3.65
Beech Creek ★	50	0.50	4.09
Smith Creek-Buffalo River	87	0.21	3.52
Whiteley Creek-Buffalo River	161	0.38	3.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-08-10 02:00	140	2.66
−3 h	2016-08-10 00:00	122	2.58
−6 h	2016-08-09 21:00	142	2.63
−12 h	2016-08-09 15:00	193	2.76
−24 h	2016-08-09 03:00	354	3.15
−48 h	2016-08-08 03:00	301	2.89
−72 h	2016-08-07 03:00	23	1.70

2016-08-07 17:00 CDT · peak Moderate 812 cfs · 1 dwells · 1.30" rain/24h

Onset (rise crosses 200 cfs)Sun 2016-08-07 17:00 CDT

Peak2016-08-08 15:00 CDT — 812 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span46 h (1.9 days)

Baseline flow (min, 72 h pre-onset)23 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-08-07 17:00	2016-08-09 14:00	46 h	812

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.03
preceding 3 h	0.45
preceding 6 h	1.30
preceding 12 h	1.30
preceding 24 h	1.30
preceding 48 h	2.16
preceding 72 h	2.16

Rain onset → crest1.72 in

Rain over full excursion1.89 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.09	1.96
Beech Creek ★	50	1.93	2.94
Smith Creek-Buffalo River	87	1.89	2.48
Whiteley Creek-Buffalo River	161	0.91	1.86

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-08-07 16:00	31	1.77
−3 h	2016-08-07 14:00	25	1.72
−6 h	2016-08-07 11:00	23	1.70
−12 h	2016-08-07 05:00	23	1.70
−24 h	2016-08-06 17:00	25	1.72
−48 h	2016-08-05 17:00	28	1.75
−72 h	2016-08-04 17:00	34	1.80

2016-07-31 10:00 CDT · peak Moderate 421 cfs · 1 dwells · 1.47" rain/24h

Onset (rise crosses 200 cfs)Sun 2016-07-31 10:00 CDT

Peak2016-07-31 13:00 CDT — 421 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span17 h (0.7 days)

Baseline flow (min, 72 h pre-onset)29 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-07-31 10:00	2016-08-01 02:00	17 h	421

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.53
preceding 12 h	1.18
preceding 24 h	1.47
preceding 48 h	2.11
preceding 72 h	2.33

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.39	2.28
Beech Creek ★	50	1.58	2.91
Smith Creek-Buffalo River	87	1.71	2.49
Whiteley Creek-Buffalo River	161	1.35	2.09

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-07-31 09:00	183	2.54
−3 h	2016-07-31 07:00	160	2.46
−6 h	2016-07-31 04:00	99	2.21
−12 h	2016-07-30 22:00	95	2.19
−24 h	2016-07-30 10:00	66	2.04
−48 h	2016-07-29 10:00	29	1.76
−72 h	2016-07-28 10:00	36	1.82

2016-05-24 21:00 CDT · peak Flood 4,585 cfs · 6 dwells · 1.43" rain/24h

Onset (rise crosses 200 cfs)Tue 2016-05-24 21:00 CDT

Peak2016-05-25 15:00 CDT — 4,585 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span301 h (12.5 days)

Baseline flow (min, 72 h pre-onset)62 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	rising	2016-05-24 21:00	2016-05-25 11:00	15 h	2,145
Flood	peak	2016-05-25 12:00	2016-05-26 01:00	14 h	4,585
High	falling	2016-05-26 02:00	2016-05-26 19:00	18 h	1,592
Flood	falling	2016-05-26 20:00	2016-05-27 01:00	6 h	2,120
High	falling	2016-05-27 02:00	2016-05-27 20:00	19 h	1,552
Moderate	falling	2016-05-27 21:00	2016-06-06 09:00	229 h (9.5 d)	896

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	1.20
preceding 12 h	1.43
preceding 24 h	1.43
preceding 48 h	1.50
preceding 72 h	1.50

Rain onset → crest1.13 in

Rain over full excursion2.90 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.93	2.05
Beech Creek	50	1.16	1.23
Smith Creek-Buffalo River	87	1.79	1.87
Whiteley Creek-Buffalo River	161	1.03	1.06

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-05-24 20:00	97	2.20
−3 h	2016-05-24 18:00	88	2.15
−6 h	2016-05-24 15:00	70	2.06
−12 h	2016-05-24 09:00	64	2.02
−24 h	2016-05-23 21:00	68	2.04
−48 h	2016-05-22 21:00	83	2.13
−72 h	2016-05-21 21:00	106	2.24

2016-05-09 22:00 CDT · peak High 1,222 cfs · 2 dwells · 1.46" rain/24h

Onset (rise crosses 200 cfs)Mon 2016-05-09 22:00 CDT

Peak2016-05-10 02:00 CDT — 1,222 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span195 h (8.1 days)

Baseline flow (min, 72 h pre-onset)77 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2016-05-10 00:00	2016-05-10 07:00	8 h	1,222
Moderate	falling	2016-05-10 08:00	2016-05-18 00:00	185 h (7.7 d)	894

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.05
preceding 3 h	0.29
preceding 6 h	0.93
preceding 12 h	1.45
preceding 24 h	1.46
preceding 48 h	1.46
preceding 72 h	1.46

Rain onset → crest0.00 in

Rain over full excursion1.54 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.72	1.72
Beech Creek	50	1.44	1.44
Smith Creek-Buffalo River ★	87	1.79	1.79
Whiteley Creek-Buffalo River	161	1.13	1.14

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-05-09 21:00	172	2.50
−3 h	2016-05-09 19:00	130	2.35
−6 h	2016-05-09 16:00	88	2.15
−12 h	2016-05-09 10:00	78	2.10
−24 h	2016-05-08 22:00	82	2.12
−48 h	2016-05-07 22:00	102	2.22
−72 h	2016-05-06 22:00	127	2.33

2016-04-30 02:00 CDT · peak High 1,345 cfs · 3 dwells · 1.46" rain/24h

Onset (rise crosses 200 cfs)Sat 2016-04-30 02:00 CDT

Peak2016-04-30 09:00 CDT — 1,345 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span117 h (4.9 days)

Baseline flow (min, 72 h pre-onset)41 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2016-04-30 02:00	2016-04-30 06:00	5 h	853
High	peak	2016-04-30 07:00	2016-04-30 16:00	10 h	1,345
Moderate	falling	2016-04-30 17:00	2016-05-04 22:00	102 h (4.2 d)	860

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.26
preceding 3 h	0.45
preceding 6 h	0.72
preceding 12 h	0.75
preceding 24 h	1.46
preceding 48 h	1.46
preceding 72 h	1.83

Rain onset → crest0.15 in

Rain over full excursion0.18 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.57	1.92
Beech Creek	50	1.37	1.74
Smith Creek-Buffalo River	87	1.43	1.73
Whiteley Creek-Buffalo River	161	1.44	1.85

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-04-30 01:00	163	2.47
−3 h	2016-04-29 23:00	139	2.38
−6 h	2016-04-29 20:00	123	2.31
−12 h	2016-04-29 14:00	86	2.14
−24 h	2016-04-29 02:00	42	1.87
−48 h	2016-04-28 02:00	50	1.93
−72 h	2016-04-27 02:00	40	1.85

2016-03-30 19:00 CDT · peak Moderate 563 cfs · 1 dwells · 0.87" rain/24h

Onset (rise crosses 200 cfs)Wed 2016-03-30 19:00 CDT

Peak2016-03-31 05:00 CDT — 563 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span143 h (6.0 days)

Baseline flow (min, 72 h pre-onset)162 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-03-30 19:00	2016-04-05 17:00	143 h (6.0 d)	563

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.43
preceding 6 h	0.79
preceding 12 h	0.87
preceding 24 h	0.87
preceding 48 h	0.87
preceding 72 h	0.87

Rain onset → crest0.07 in

Rain over full excursion0.08 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.87	0.87
Beech Creek	50	0.81	0.81
Smith Creek-Buffalo River	87	0.82	0.82
Whiteley Creek-Buffalo River ★	161	0.91	0.91

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-03-30 18:00	195	2.58
−3 h	2016-03-30 16:00	179	2.52
−6 h	2016-03-30 13:00	163	2.47
−12 h	2016-03-30 07:00	164	2.48
−24 h	2016-03-29 19:00	172	2.50
−48 h	2016-03-28 19:00	189	2.56
−72 h	2016-03-27 19:00	216	2.64

2016-03-24 02:00 CDT · peak Moderate 440 cfs · 1 dwells · 0.69" rain/24h

Onset (rise crosses 200 cfs)Thu 2016-03-24 02:00 CDT

Peak2016-03-24 13:00 CDT — 440 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span103 h (4.3 days)

Baseline flow (min, 72 h pre-onset)138 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-03-24 02:00	2016-03-28 08:00	103 h (4.3 d)	440

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.25
preceding 3 h	0.69
preceding 6 h	0.69
preceding 12 h	0.69
preceding 24 h	0.69
preceding 48 h	0.69
preceding 72 h	0.69

Rain onset → crest0.01 in

Rain over full excursion0.01 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.72	0.72
Beech Creek ★	50	0.73	0.73
Smith Creek-Buffalo River	87	0.66	0.66
Whiteley Creek-Buffalo River	161	0.68	0.68

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-03-24 01:00	186	2.55
−3 h	2016-03-23 23:00	138	2.38
−6 h	2016-03-23 20:00	139	2.38
−12 h	2016-03-23 14:00	142	2.39
−24 h	2016-03-23 02:00	149	2.42
−48 h	2016-03-22 02:00	162	2.47
−72 h	2016-03-21 02:00	185	2.54

2016-02-24 05:00 CST · peak Flood 2,430 cfs · 6 dwells · 1.04" rain/24h

Onset (rise crosses 200 cfs)Wed 2016-02-24 05:00 CST

Peak2016-03-08 23:00 CST — 2,430 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span607 h (25.3 days)

Baseline flow (min, 72 h pre-onset)20 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2016-02-24 05:00	2016-03-08 18:00	326 h (13.6 d)	694
Flood	peak	2016-03-08 20:00	2016-03-09 04:00	9 h	2,430
High	falling	2016-03-09 05:00	2016-03-10 13:00	33 h	1,550
Flood	falling	2016-03-10 14:00	2016-03-10 22:00	9 h	1,908
High	falling	2016-03-10 23:00	2016-03-11 23:00	25 h	1,570
Moderate	falling	2016-03-12 00:00	2016-03-20 12:00	204 h (8.5 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.08
preceding 6 h	0.24
preceding 12 h	0.53
preceding 24 h	1.04
preceding 48 h	1.04
preceding 72 h	1.05

Rain onset → crest1.73 in

Rain over full excursion2.61 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.34	1.34
Beech Creek	50	1.04	1.04
Smith Creek-Buffalo River	87	1.10	1.10
Whiteley Creek-Buffalo River	161	0.85	0.85

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-02-24 04:00	194	2.57
−3 h	2016-02-24 02:00	109	2.25
−6 h	2016-02-23 23:00	60	1.99
−12 h	2016-02-23 17:00	27	1.74
−24 h	2016-02-23 05:00	20	1.66
−48 h	2016-02-22 05:00	21	1.67
−72 h	2016-02-21 05:00	21	1.67

2016-01-07 10:00 CST · peak Moderate 421 cfs · 1 dwells · 0.37" rain/24h

Onset (rise crosses 200 cfs)Thu 2016-01-07 10:00 CST

Peak2016-01-09 17:00 CST — 421 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span198 h (8.2 days)

Baseline flow (min, 72 h pre-onset)192 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2016-01-07 10:00	2016-01-15 15:00	198 h (8.2 d)	421

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.08
preceding 3 h	0.16
preceding 6 h	0.35
preceding 12 h	0.36
preceding 24 h	0.37
preceding 48 h	0.37
preceding 72 h	0.37

Rain onset → crest0.29 in

Rain over full excursion0.29 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.46	0.46
Beech Creek	50	0.35	0.35
Smith Creek-Buffalo River	87	0.36	0.36
Whiteley Creek-Buffalo River	161	0.32	0.32

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2016-01-07 09:00	199	2.59
−3 h	2016-01-07 07:00	196	2.58
−6 h	2016-01-07 04:00	193	2.57
−12 h	2016-01-06 22:00	199	2.59
−24 h	2016-01-06 10:00	211	2.63
−48 h	2016-01-05 10:00	246	2.73
−72 h	2016-01-04 10:00	298	2.88

2015-12-26 23:00 CST · peak Flood 17,375 cfs · 4 dwells · 0.30" rain/24h

Onset (rise crosses 200 cfs)Sat 2015-12-26 23:00 CST

Peak2015-12-27 18:00 CST — 17,375 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span262 h (10.9 days)

Baseline flow (min, 72 h pre-onset)110 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2015-12-26 23:00	2015-12-27 04:00	6 h	724
Flood	peak	2015-12-27 05:00	2015-12-29 09:00	53 h (2.2 d)	17,375
High	falling	2015-12-29 10:00	2015-12-30 11:00	26 h	1,548
Moderate	falling	2015-12-30 12:00	2016-01-06 20:00	177 h (7.4 d)	880

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.03
preceding 3 h	0.04
preceding 6 h	0.04
preceding 12 h	0.27
preceding 24 h	0.30
preceding 48 h	0.30
preceding 72 h	0.30

Rain onset → crest2.85 in

Rain over full excursion4.72 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.27	0.27
Beech Creek ★	50	0.37	0.37
Smith Creek-Buffalo River	87	0.27	0.27
Whiteley Creek-Buffalo River	161	0.32	0.32

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-12-26 22:00	194	2.77
−3 h	2015-12-26 20:00	155	2.65
−6 h	2015-12-26 17:00	124	2.56
−12 h	2015-12-26 11:00	110	2.50
−24 h	2015-12-25 23:00	114	2.51
−48 h	2015-12-24 23:00	139	2.62
−72 h	2015-12-23 23:00	208	2.86

2015-12-23 18:00 CST · peak Moderate 215 cfs · 1 dwells · 0.48" rain/24h

Onset (rise crosses 200 cfs)Wed 2015-12-23 18:00 CST

Peak2015-12-23 21:00 CST — 215 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span7 h (0.3 days)

Baseline flow (min, 72 h pre-onset)100 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-12-23 18:00	2015-12-24 00:00	7 h	215

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.12
preceding 24 h	0.48
preceding 48 h	0.48
preceding 72 h	0.56

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.57	0.68
Beech Creek	50	0.53	0.63
Smith Creek-Buffalo River	87	0.43	0.57
Whiteley Creek-Buffalo River	161	0.43	0.46

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-12-23 17:00	198	2.83
−3 h	2015-12-23 15:00	168	2.73
−6 h	2015-12-23 12:00	121	2.54
−12 h	2015-12-23 06:00	107	2.49
−24 h	2015-12-22 18:00	104	2.47
−48 h	2015-12-21 18:00	129	2.58
−72 h	2015-12-20 18:00	132	2.59

2015-12-13 12:00 CST · peak Flood 6,170 cfs · 3 dwells · 1.00" rain/24h

Onset (rise crosses 200 cfs)Sun 2015-12-13 12:00 CST

Peak2015-12-13 18:00 CST — 6,170 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span132 h (5.5 days)

Baseline flow (min, 72 h pre-onset)40 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	peak	2015-12-13 14:00	2015-12-14 14:00	25 h	6,170
High	falling	2015-12-14 15:00	2015-12-15 03:00	13 h	1,552
Moderate	falling	2015-12-15 04:00	2015-12-18 23:00	92 h (3.8 d)	874

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.08
preceding 3 h	0.25
preceding 6 h	0.31
preceding 12 h	0.62
preceding 24 h	1.00
preceding 48 h	1.00
preceding 72 h	1.00

Rain onset → crest0.78 in

Rain over full excursion1.33 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.18	1.18
Beech Creek	50	1.10	1.10
Smith Creek-Buffalo River	87	1.08	1.08
Whiteley Creek-Buffalo River	161	0.83	0.83

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-12-13 11:00	135	2.60
−3 h	2015-12-13 09:00	73	2.31
−6 h	2015-12-13 06:00	56	2.21
−12 h	2015-12-13 00:00	45	2.13
−24 h	2015-12-12 12:00	40	2.09
−48 h	2015-12-11 12:00	43	2.12
−72 h	2015-12-10 12:00	47	2.15

2015-11-27 23:00 CST · peak High 1,350 cfs · 2 dwells · 1.25" rain/24h

Onset (rise crosses 200 cfs)Fri 2015-11-27 23:00 CST

Peak2015-11-28 02:00 CST — 1,350 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span111 h (4.6 days)

Baseline flow (min, 72 h pre-onset)22 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2015-11-28 00:00	2015-11-28 23:00	24 h	1,350
Moderate	falling	2015-11-29 00:00	2015-12-02 13:00	86 h (3.6 d)	884

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.07
preceding 3 h	0.33
preceding 6 h	0.58
preceding 12 h	1.01
preceding 24 h	1.25
preceding 48 h	1.27
preceding 72 h	1.27

Rain onset → crest0.05 in

Rain over full excursion1.37 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.45	1.48
Beech Creek	50	1.25	1.26
Smith Creek-Buffalo River	87	1.23	1.24
Whiteley Creek-Buffalo River	161	1.14	1.16

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-11-27 22:00	182	2.68
−3 h	2015-11-27 20:00	53	2.19
−6 h	2015-11-27 17:00	36	2.06
−12 h	2015-11-27 11:00	24	1.95
−24 h	2015-11-26 23:00	22	1.93
−48 h	2015-11-25 23:00	24	1.95
−72 h	2015-11-24 23:00	26	1.97

2015-11-17 15:00 CST · peak Flood 1,600 cfs · 2 dwells · 2.24" rain/24h

Onset (rise crosses 200 cfs)Tue 2015-11-17 15:00 CST

Peak2015-11-17 20:00 CST — 1,600 cfs (Flood)

Highest sustained stage (≥4 h dwell)High

Total excursion span31 h (1.3 days)

Baseline flow (min, 72 h pre-onset)8 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
High	peak	2015-11-17 17:00	2015-11-18 01:00	9 h	1,600
Moderate	falling	2015-11-18 02:00	2015-11-18 21:00	20 h	820

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.51
preceding 6 h	0.77
preceding 12 h	1.26
preceding 24 h	2.24
preceding 48 h	2.78
preceding 72 h	2.99

Rain onset → crest0.36 in

Rain over full excursion0.36 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	2.73	3.32
Beech Creek	50	2.17	2.88
Smith Creek-Buffalo River	87	2.33	2.97
Whiteley Creek-Buffalo River	161	1.93	2.84

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-11-17 14:00	179	2.76
−3 h	2015-11-17 12:00	79	2.35
−6 h	2015-11-17 09:00	43	2.12
−12 h	2015-11-17 03:00	36	2.06
−24 h	2015-11-16 15:00	10	1.75
−48 h	2015-11-15 15:00	8	1.73
−72 h	2015-11-14 15:00	9	1.74

2015-07-08 17:00 CDT · peak High 1,132 cfs · 3 dwells · 1.13" rain/24h

Onset (rise crosses 200 cfs)Wed 2015-07-08 17:00 CDT

Peak2015-07-09 00:00 CDT — 1,132 cfs (High)

Highest sustained stage (≥4 h dwell)High

Total excursion span98 h (4.1 days)

Baseline flow (min, 72 h pre-onset)50 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2015-07-08 17:00	2015-07-08 22:00	6 h	842
High	peak	2015-07-08 23:00	2015-07-09 04:00	6 h	1,132
Moderate	falling	2015-07-09 05:00	2015-07-12 18:00	86 h (3.6 d)	861

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.04
preceding 3 h	0.88
preceding 6 h	0.88
preceding 12 h	0.88
preceding 24 h	1.13
preceding 48 h	1.88
preceding 72 h	1.96

Rain onset → crest0.35 in

Rain over full excursion0.81 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.76	2.68
Beech Creek	50	0.68	1.70
Smith Creek-Buffalo River	87	1.64	2.30
Whiteley Creek-Buffalo River	161	0.63	1.43

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-07-08 16:00	167	2.61
−3 h	2015-07-08 14:00	132	2.48
−6 h	2015-07-08 11:00	124	2.45
−12 h	2015-07-08 05:00	134	2.49
−24 h	2015-07-07 17:00	180	2.66
−48 h	2015-07-06 17:00	53	2.08
−72 h	2015-07-05 17:00	59	2.12

2015-06-26 23:00 CDT · peak Moderate 442 cfs · 1 dwells · 1.46" rain/24h

Onset (rise crosses 200 cfs)Fri 2015-06-26 23:00 CDT

Peak2015-06-27 03:00 CDT — 442 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span22 h (0.9 days)

Baseline flow (min, 72 h pre-onset)116 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-06-26 23:00	2015-06-27 20:00	22 h	442

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.64
preceding 12 h	1.46
preceding 24 h	1.46
preceding 48 h	1.46
preceding 72 h	1.46

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.48	1.48
Beech Creek	50	1.39	1.39
Smith Creek-Buffalo River	87	1.23	1.23
Whiteley Creek-Buffalo River ★	161	1.60	1.60

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-06-26 22:00	189	2.69
−3 h	2015-06-26 20:00	170	2.62
−6 h	2015-06-26 17:00	136	2.50
−12 h	2015-06-26 11:00	124	2.45
−24 h	2015-06-25 23:00	131	2.48
−48 h	2015-06-24 23:00	174	2.63
−72 h	2015-06-23 23:00	248	2.85

2015-06-13 23:00 CDT · peak Flood 24,550 cfs · 10 dwells · 1.38" rain/24h

Onset (rise crosses 200 cfs)Sat 2015-06-13 23:00 CDT

Peak2015-06-16 01:00 CDT — 24,550 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span257 h (10.7 days)

Baseline flow (min, 72 h pre-onset)28 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Flood	rising	2015-06-14 00:00	2015-06-14 05:00	6 h	3,735
Moderate	rising	2015-06-14 09:00	2015-06-14 22:00	14 h	855
Flood	rising	2015-06-15 00:00	2015-06-15 03:00	4 h	3,592
High	rising	2015-06-15 04:00	2015-06-15 10:00	7 h	1,568
Moderate	rising	2015-06-15 11:00	2015-06-15 21:00	11 h	888
Flood	peak	2015-06-15 22:00	2015-06-17 00:00	27 h	24,550
High	falling	2015-06-17 01:00	2015-06-18 01:00	25 h	1,568
Flood	falling	2015-06-18 02:00	2015-06-20 03:00	50 h (2.1 d)	6,418
High	falling	2015-06-20 04:00	2015-06-20 20:00	17 h	1,588
Moderate	falling	2015-06-20 21:00	2015-06-24 15:00	91 h (3.8 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.47
preceding 3 h	0.89
preceding 6 h	0.92
preceding 12 h	1.37
preceding 24 h	1.38
preceding 48 h	1.38
preceding 72 h	1.38

Rain onset → crest3.87 in

Rain over full excursion5.66 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	1.16	1.16
Beech Creek	50	1.38	1.38
Smith Creek-Buffalo River ★	87	1.74	1.74
Whiteley Creek-Buffalo River	161	1.31	1.31

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-06-13 22:00	62	2.07
−3 h	2015-06-13 20:00	43	1.95
−6 h	2015-06-13 17:00	47	1.98
−12 h	2015-06-13 11:00	28	1.82
−24 h	2015-06-12 23:00	29	1.83
−48 h	2015-06-11 23:00	36	1.89
−72 h	2015-06-10 23:00	45	1.96

2015-06-06 15:00 CDT · peak Moderate 545 cfs · 1 dwells · 0.14" rain/24h

Onset (rise crosses 200 cfs)Sat 2015-06-06 15:00 CDT

Peak2015-06-06 16:00 CDT — 545 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span7 h (0.3 days)

Baseline flow (min, 72 h pre-onset)121 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-06-06 15:00	2015-06-06 21:00	7 h	545

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.12
preceding 3 h	0.13
preceding 6 h	0.13
preceding 12 h	0.13
preceding 24 h	0.14
preceding 48 h	0.14
preceding 72 h	0.14

Rain onset → crest0.07 in

Rain over full excursion0.07 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River	92	0.03	0.03
Beech Creek	50	0.04	0.04
Smith Creek-Buffalo River	87	0.02	0.02
Whiteley Creek-Buffalo River ★	161	0.29	0.29

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-06-06 14:00	130	2.41
−3 h	2015-06-06 12:00	122	2.38
−6 h	2015-06-06 09:00	124	2.39
−12 h	2015-06-06 03:00	131	2.42
−24 h	2015-06-05 15:00	154	2.51
−48 h	2015-06-04 15:00	206	2.68
−72 h	2015-06-03 15:00	285	2.91

2015-05-09 15:00 CDT · peak Flood 12,125 cfs · 18 dwells · 0.41" rain/24h

Onset (rise crosses 200 cfs)Sat 2015-05-09 15:00 CDT

Peak2015-05-11 06:00 CDT — 12,125 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span626 h (26.1 days)

Baseline flow (min, 72 h pre-onset)45 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2015-05-09 15:00	2015-05-10 01:00	11 h	802
Flood	peak	2015-05-10 04:00	2015-05-12 00:00	45 h	12,125
High	falling	2015-05-12 01:00	2015-05-12 15:00	15 h	1,578
Moderate	falling	2015-05-12 16:00	2015-05-17 06:00	111 h (4.6 d)	896
Flood	falling	2015-05-17 09:00	2015-05-17 16:00	8 h	2,302
High	falling	2015-05-17 17:00	2015-05-18 03:00	11 h	1,590
Moderate	falling	2015-05-18 04:00	2015-05-20 08:00	53 h (2.2 d)	888
High	falling	2015-05-20 09:00	2015-05-21 02:00	18 h	1,628
Moderate	falling	2015-05-21 03:00	2015-05-24 17:00	87 h (3.6 d)	878
High	falling	2015-05-24 18:00	2015-05-25 09:00	16 h	1,570
Moderate	falling	2015-05-25 10:00	2015-05-25 21:00	12 h	883
High	falling	2015-05-25 22:00	2015-05-26 15:00	18 h	1,470
Moderate	falling	2015-05-26 16:00	2015-05-27 17:00	26 h	886
High	falling	2015-05-27 18:00	2015-05-28 00:00	7 h	1,935
Moderate	falling	2015-05-28 01:00	2015-05-29 20:00	44 h	895
Flood	falling	2015-05-30 00:00	2015-05-30 05:00	6 h	1,818
High	falling	2015-05-30 06:00	2015-05-30 22:00	17 h	1,575
Moderate	falling	2015-05-30 23:00	2015-06-04 16:00	114 h (4.8 d)	885

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.02
preceding 3 h	0.04
preceding 6 h	0.04
preceding 12 h	0.07
preceding 24 h	0.41
preceding 48 h	1.61
preceding 72 h	1.67

Rain onset → crest3.87 in

Rain over full excursion11.71 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.40	2.00
Beech Creek	50	0.40	1.64
Smith Creek-Buffalo River	87	0.35	1.64
Whiteley Creek-Buffalo River	161	0.46	1.50

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-05-09 14:00	196	2.65
−3 h	2015-05-09 12:00	158	2.52
−6 h	2015-05-09 09:00	149	2.49
−12 h	2015-05-09 03:00	153	2.50
−24 h	2015-05-08 15:00	74	2.15
−48 h	2015-05-07 15:00	48	1.99
−72 h	2015-05-06 15:00	52	2.02

2015-04-13 20:00 CDT · peak Moderate 785 cfs · 1 dwells · 0.93" rain/24h

Onset (rise crosses 200 cfs)Mon 2015-04-13 20:00 CDT

Peak2015-04-20 03:00 CDT — 785 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span284 h (11.8 days)

Baseline flow (min, 72 h pre-onset)152 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-04-13 20:00	2015-04-25 15:00	284 h (11.8 d)	785

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.07
preceding 3 h	0.27
preceding 6 h	0.62
preceding 12 h	0.93
preceding 24 h	0.93
preceding 48 h	0.93
preceding 72 h	0.93

Rain onset → crest1.20 in

Rain over full excursion1.42 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	1.08	1.08
Beech Creek	50	0.93	0.93
Smith Creek-Buffalo River	87	0.95	0.95
Whiteley Creek-Buffalo River	161	0.83	0.83

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-04-13 19:00	198	2.66
−3 h	2015-04-13 17:00	173	2.57
−6 h	2015-04-13 14:00	156	2.52
−12 h	2015-04-13 08:00	152	2.50
−24 h	2015-04-12 20:00	155	2.51
−48 h	2015-04-11 20:00	163	2.54
−72 h	2015-04-10 20:00	188	2.62

2015-04-10 05:00 CDT · peak Moderate 234 cfs · 1 dwells · 0.47" rain/24h

Onset (rise crosses 200 cfs)Fri 2015-04-10 05:00 CDT

Peak2015-04-10 11:00 CDT — 234 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span12 h (0.5 days)

Baseline flow (min, 72 h pre-onset)144 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-04-10 05:00	2015-04-10 16:00	12 h	234

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.46
preceding 24 h	0.47
preceding 48 h	0.48
preceding 72 h	0.48

Rain onset → crest0.00 in

Rain over full excursion0.00 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.70	0.73
Beech Creek	50	0.56	0.56
Smith Creek-Buffalo River	87	0.70	0.70
Whiteley Creek-Buffalo River	161	0.18	0.18

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-04-10 04:00	200	2.66
−3 h	2015-04-10 02:00	198	2.66
−6 h	2015-04-09 23:00	199	2.66
−12 h	2015-04-09 17:00	145	2.47
−24 h	2015-04-09 05:00	150	2.49
−48 h	2015-04-08 05:00	167	2.55
−72 h	2015-04-07 05:00	186	2.62

2015-03-03 21:00 CST · peak Flood 3,070 cfs · 9 dwells · 0.05" rain/24h

Onset (rise crosses 200 cfs)Tue 2015-03-03 21:00 CST

Peak2015-03-13 21:00 CDT — 3,070 cfs (Flood)

Highest sustained stage (≥4 h dwell)Flood

Total excursion span808 h (33.7 days)

Baseline flow (min, 72 h pre-onset)112 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	rising	2015-03-03 21:00	2015-03-04 13:00	17 h	866
High	rising	2015-03-04 14:00	2015-03-05 00:00	11 h	1,210
Moderate	rising	2015-03-05 01:00	2015-03-13 16:00	207 h (8.6 d)	896
Flood	peak	2015-03-13 19:00	2015-03-14 10:00	16 h	3,070
High	falling	2015-03-14 11:00	2015-03-15 07:00	21 h	1,582
Moderate	falling	2015-03-15 08:00	2015-03-26 01:00	258 h (10.8 d)	886
Flood	falling	2015-03-26 03:00	2015-03-26 11:00	9 h	2,388
High	falling	2015-03-26 12:00	2015-03-27 02:00	15 h	1,575
Moderate	falling	2015-03-27 03:00	2015-04-06 13:00	251 h (10.5 d)	898

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.01
preceding 3 h	0.03
preceding 6 h	0.04
preceding 12 h	0.05
preceding 24 h	0.05
preceding 48 h	0.05
preceding 72 h	0.20

Rain onset → crest3.07 in

Rain over full excursion7.33 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.08	0.23
Beech Creek	50	0.04	0.18
Smith Creek-Buffalo River	87	0.04	0.18
Whiteley Creek-Buffalo River	161	0.03	0.19

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-03-03 20:00	196	2.62
−3 h	2015-03-03 18:00	181	2.56
−6 h	2015-03-03 15:00	172	2.52
−12 h	2015-03-03 09:00	163	2.49
−24 h	2015-03-02 21:00	145	2.42
−48 h	2015-03-01 21:00	128	2.34
−72 h	2015-02-28 21:00	112	2.27

2015-02-22 01:00 CST · peak Moderate 254 cfs · 1 dwells · 0.22" rain/24h

Onset (rise crosses 200 cfs)Sun 2015-02-22 01:00 CST

Peak2015-02-22 05:00 CST — 254 cfs (Moderate)

Highest sustained stage (≥4 h dwell)Moderate

Total excursion span22 h (0.9 days)

Baseline flow (min, 72 h pre-onset)28 cfs

Qualifying stage dwells (≥4 h), in order — rising then falling:

Stage	Pass	Start (CT)	End (CT)	Duration	Peak cfs
Moderate	peak	2015-02-22 01:00	2015-02-22 22:00	22 h	254

Originating rainfall — area-weighted over the 4 HUC12s above Ponca (inches):

Window ending at onset	Total rain (in)
preceding 1 h	0.00
preceding 3 h	0.00
preceding 6 h	0.00
preceding 12 h	0.00
preceding 24 h	0.22
preceding 48 h	0.30
preceding 72 h	0.30

Rain onset → crest0.00 in

Rain over full excursion0.02 in

Where it fell — per-HUC12 totals (in). ★ = wettest sub-watershed over 72 h:

HUC12 sub-watershed	Area (km²)	Rain 24h	Rain 72h
Terrapin Branch-Buffalo River ★	92	0.24	0.39
Beech Creek	50	0.24	0.29
Smith Creek-Buffalo River	87	0.19	0.28
Whiteley Creek-Buffalo River	161	0.23	0.27

Basin "Rain 72h" above is the area-weighted mean of these; the wettest single sub-watershed can run well above it when a storm is localized.

Pre-onset flow (USGS discharge / stage):

Lookback	Time (CT)	Flow (cfs)	Stage (ft)
−1 h	2015-02-22 00:00	191	2.60
−3 h	2015-02-21 22:00	160	2.48
−6 h	2015-02-21 19:00	114	2.28
−12 h	2015-02-21 13:00	71	2.07
−24 h	2015-02-21 01:00	30	1.80
−48 h	2015-02-20 01:00	30	1.80
−72 h	2015-02-19 01:00	31	1.81

View pre-QPE excursions (Nov 2014 – Jan 2015, USGS flow only) →

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DISCLAIMER: This site provides creek condition estimates for informational purposes only. Gauge data, radar estimates, and forecasts may be delayed, inaccurate, or unavailable. Always exercise independent judgment. Whitewater kayaking is inherently dangerous — water conditions can change rapidly. This site and its maintainers assume no responsibility for decisions made based on information displayed here.