Classification: no_prediction Confidence: This anomalous event provides no calibration value and suggests potential data quality issues that should be investigated
The gauge showed a 1.11 ft rise to 3.83 ft with no recorded precipitation, indicating either measurement error or a non-rainfall event.
| Metric | Predicted | Actual | Error |
|---|---|---|---|
| Peak height | N/A | 3.83 ft | N/A |
| Total rise | — | 1.11 ft | — |
| Band | Zone | Precip | Predicted Rise | Intensity | Moisture |
|---|---|---|---|---|---|
This event presents a puzzling scenario where the gauge recorded a significant rise from 2.72 ft to 3.83 ft (1.11 ft increase) with zero precipitation recorded both at the gauge and across all watershed bands. The rise occurred at the start of the day (00:00) with zero duration, suggesting this may be a data artifact, instrument malfunction, or possibly a non-rainfall event like upstream dam release or ice jam break. Since no prediction was generated due to lack of rainfall input, this cannot be classified as a prediction error. The sharp hydrograph shape with immediate peak timing is consistent with a non-meteorological event rather than natural watershed response to precipitation. Without any rainfall to analyze, this event provides no useful information for calibrating the rainfall-runoff relationship coefficients.
No changes made.
This anomalous event provides no calibration value and suggests potential data quality issues that should be investigated