Classification: no_prediction Confidence: Model confidence remains unchanged as this event provides no rainfall-runoff relationship data to evaluate or improve predictions
The river showed a 0.68 ft rise with no rainfall detected in any band, indicating either measurement noise or very localized precipitation below QPE detection thresholds.
| Metric | Predicted | Actual | Error |
|---|---|---|---|
| Peak height | N/A | 3.96 ft | N/A |
| Total rise | — | 0.68 ft | — |
| Band | Precip | Predicted Rise | Intensity | Moisture |
|---|---|---|---|---|
This event presents a puzzling scenario where the gauge recorded a significant 0.68 ft rise (from 3.28 ft to 3.96 ft) but no rainfall was detected in any watershed band, and the gauge precipitation sensor confirmed 0 inches. The rise occurred at the start of the day with a sharp hydrograph shape, which would typically indicate near-gauge rainfall, but Band 1 shows zero precipitation. This could represent either a measurement anomaly, very localized precipitation below QPE detection thresholds, or possibly upstream releases or other non-meteorological factors. Since no prediction was generated due to lack of rainfall input, there is no model performance to evaluate. The event is classified as 'no_prediction' rather than a false negative because the model appropriately did not trigger without rainfall input. Without rainfall data to correlate with the observed rise, no coefficient adjustments can be made as any changes would be based on incomplete information.
No changes made.
Model confidence remains unchanged as this event provides no rainfall-runoff relationship data to evaluate or improve predictions