Classification: no_prediction Confidence: Model confidence remains medium/low for headwater bands due to repeated no-prediction or false positive events in recent history. The physics engine struggles with detecting and quantifying rises from distributed, low-intensity headwater rainfall, even when antecedent conditions are favorable.
The physics-based prediction engine generated no output for today's event, which involved a 0.54 ft rise driven by light, widespread rainfall across headwater bands with zero gauge precipitation.
| Metric | Predicted | Actual | Error |
|---|---|---|---|
| Peak height | N/A | 3.06 ft | N/A |
| Total rise | — | 0.54 ft | — |
| Band | Precip | Predicted Rise | Intensity | Moisture |
|---|---|---|---|---|
Headline: Watch — Recent rainfall is in the lower-bound range preceding rises to LOW Settled outcome: verified (reached low) LLM said headline was correct: True Notes: The empirical model predicted a rise to the 'low' tier with high confidence. The actual peak was 3.06 ft, which exceeds the 3.0 ft low threshold. The outcome was verified as 'low' tier reached.
Today's hydrological event featured a 0.54 ft rise to a peak of 3.06 ft, characterized by a very broad hydrograph shape and an 11-hour duration. The rainfall was distributed across Bands 1 through 5, with cumulative totals ranging from ~0.38" in Band 1 to ~0.58" in Band 4, under WET antecedent moisture conditions. Notably, the ground-truth gauge recorded 0.00" of precipitation, confirming that the rise was entirely driven by upstream watershed contributions rather than near-gauge rainfall.
The prediction engine failed to generate a forecast (Predicted peak: None). This is likely because the total rainfall per band was relatively low and diffuse, potentially falling below the activation threshold for the model's current configuration, or due to the system interpreting the 0.00" gauge reading as a lack of significant near-gauge trigger. Unlike the previous 'no_prediction' event on May 20, where rainfall was negligible (<0.06" per band), today's event had sufficient volume to cause a measurable 0.54 ft rise.
Because no prediction was generated, magnitude and timing errors cannot be calculated. However, the failure to predict a clear, measurable rise (0.54 ft) from moderate headwater rainfall suggests the model may be too conservative in triggering predictions for distributed, lower-intensity events on wet ground. The empirical model, however, performed well, correctly forecasting a rise to the 'low' tier with high confidence, which was verified by the actual peak of 3.06 ft.
No changes made.
Model confidence remains medium/low for headwater bands due to repeated no-prediction or false positive events in recent history. The physics engine struggles with detecting and quantifying rises from distributed, low-intensity headwater rainfall, even when antecedent conditions are favorable.