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| COLUMBIA--BLO PRIEST RAPIDS DAM | |
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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. |
| COLUMBIA--BLO PRIEST RAPIDS DAM (PRDW1) Forecasts for Water Year 2026 Ensemble Date: 2026-02-06 Forecast Period: February 6 to June 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 17.98 | 152820 | 2026-02-25 |
| 90 % | 18.54 | 159948 | 2026-02-28 |
| 70 % | 19.50 | 172577 | 2026-05-06 |
| 50 % | 20.53 | 186861 | 2026-05-28 |
| 30 % | 22.04 | 208634 | 2026-06-01 |
| 10 % | 23.54 | 232520 | 2026-06-01 |
| 05 % | 24.88 | 256101 | 2026-06-01 |