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| MILL CREEK--NR WALLA WALLA | |
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| Forecasts are calculated from a forecast time series that approximates flow at a 6 hour time step interval. Observed instantaneous peaks can be higher than model forecast peaks. |
| MILL CREEK--NR WALLA WALLA (MLKW1) Forecasts for Water Year 2026 Ensemble Date: 2026-06-14 Forecast Period: June 14 to October 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 13.29 | 41 | 2026-06-17 |
| 90 % | 13.30 | 42 | 2026-06-26 |
| 70 % | 13.34 | 46 | 2026-07-05 |
| 50 % | 13.37 | 50 | 2026-08-24 |
| 30 % | 13.44 | 58 | 2026-09-13 |
| 10 % | 13.56 | 75 | 2026-09-25 |
| 05 % | 14.18 | 221 | 2026-09-30 |
