Classification: no_prediction Confidence: Model confidence remains medium. Repeated 'no_prediction' events due to zero gauge precipitation inputs hinder the accumulation of calibrated events, limiting the ability to refine band response coefficients. The model performs well when predictions are generated, as seen in recent correct classifications.
The prediction model failed to generate a forecast for 2026-06-08, likely due to zero gauge-precipitation readings, despite observed QPE inputs and a minor 0.34 ft gauge rise.
| Metric | Predicted | Actual | Error |
|---|---|---|---|
| Peak height | N/A | 1.75 ft | N/A |
| Total rise | — | 0.34 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 model predicted the gauge would remain in the 'below_low' tier or potentially reach 'low' if conditions were right. The actual peak of 1.75 ft remained well below the 3.0 ft 'low' threshold, consistent with the 'Watch' cautionary headline that implied marginal potential for rise but no guarantee of reaching the tier. The outcome effectively validated the conservative nature of the forecast.
Today's event was characterized by a lack of ground-truth rainfall data at the gauge (0.0"), which appears to have caused the prediction engine to skip output generation entirely (Predicted peak: None). Although QPE data indicates 0.44" of rain in Band 1 and 0.37" in Band 2, the absence of local precipitation confirmation triggered a 'no_prediction' classification. The observed hydrograph showed a broad, minor rise of 0.34 ft from 1.41 ft to 1.75 ft, peaking in the evening. This rise is consistent with baseflow recession or minor subsurface response given the NORMAL antecedent moisture conditions, rather than a direct surface runoff event driven by the sparse QPE signals.
Since no prediction was generated, coefficient calibration cannot be performed based on error metrics. The gauge remained well below the low floatable threshold (4.0 ft), settling at 1.75 ft. The broad shape of the minimal rise suggests that the watershed did not respond significantly to the QPE-detected precipitation, possibly due to infiltration losses in NORMAL conditions or inaccuracies in the QPE spatial distribution relative to the actual wetted area. The model's behavior of skipping predictions when gauge rain is zero is a known limitation that prevents calibration on days with unrecorded or localized rainfall.
No changes made.
Model confidence remains medium. Repeated 'no_prediction' events due to zero gauge precipitation inputs hinder the accumulation of calibrated events, limiting the ability to refine band response coefficients. The model performs well when predictions are generated, as seen in recent correct classifications.