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| NISQUALLY--ALDER RESERVOIR | |
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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. |
| NISQUALLY--ALDER RESERVOIR (ALRW1) Forecasts for Water Year 2025 Ensemble Date: 2025-07-02 Forecast Period: July 2 to November 1 | |||
| Exceedence Probability | Inflow CFS | Probable Date of Peak | |
| 95 % | 850 | 2025-07-02 | |
| 90 % | 850 | 2025-07-02 | |
| 70 % | 1705 | 2025-10-12 | |
| 50 % | 2250 | 2025-10-22 | |
| 30 % | 2860 | 2025-10-28 | |
| 10 % | 8380 | 2025-11-01 | |
| 05 % | 12609 | 2025-11-01 | |
