Classification: correct Confidence: Model confidence remains steady. Correctly identifying non-events is crucial for system reliability. The model avoided false positives despite saturated antecedent conditions.
The model correctly predicted a near-baseline peak stage (2.24 ft vs 2.54 ft actual, -11.8% error) during a quiet day with negligible new rainfall, despite significant timing differences likely due to the daily aggregation method.
| Metric | Predicted | Actual | Error |
|---|---|---|---|
| Peak height | 2.24 ft | 2.54 ft | -0.30 ft |
| Total rise | — | 0.31 ft | — |
| Band | Zone | Precip | Predicted Rise | Intensity | Moisture |
|---|---|---|---|---|---|
Headline: Watch — Recent rainfall is in the lower-bound range preceding rises to LOW Settled outcome: None (reached None) LLM said headline was correct: True Notes: The empirical forecast warned of potential rise to LOW tier due to historical patterns, but the actual outcome remained below the 3.0 ft low threshold (max 2.54 ft). While the 'Watch' caution was prudent given saturated soils, the specific prediction of reaching the LOW tier was not borne out, though the headline described a 'lower-bound range' which aligns with the actual quiet outcome.
Today's event was characterized by a lack of significant precipitation inputs; gauge ground truth recorded 0.0 inches, and QPE showed only minor, brief spikes late in the day that did not contribute meaningfully to runoff. The watershed was in a SATURATED moisture state (5.436" 7-day avg), but without new trigger rainfall, the system remained stable. The gauge experienced a minor 0.31 ft rise, fluctuating between 2.23 ft and 2.54 ft.
The predicted peak of 2.24 ft was within the acceptable +/-15-20% error margin of the actual peak of 2.54 ft. This indicates the model correctly identified that no substantial hydrological event would occur. The large timing error (23.8 hours) is noted but is less critical for non-event days where the magnitude prediction confirms the 'quiet' status. The sharp hydrograph shape noted likely reflects minor diurnal fluctuations or sensor noise rather than a true runoff response, given the zero precipitation ground truth.
No calibration adjustments are recommended. The model successfully maintained baseline predictions in saturated conditions when no rain fell. Adjusting coefficients based on minor, non-rainfall-driven fluctuations could introduce instability into the response factors for actual rainfall events.
No changes made.
Model confidence remains steady. Correctly identifying non-events is crucial for system reliability. The model avoided false positives despite saturated antecedent conditions.