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| SNAKE--LOWER GRANITE 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. |
| SNAKE--LOWER GRANITE DAM (LGDW1) Forecasts for Water Year 2027 Ensemble Date: 2026-10-09 Forecast Period: October 9 to February 1 | |||
| Exceedence Probability | Inflow CFS | Probable Date of Peak | |
| 95 % | 21215 | 2026-11-21 | |
| 90 % | 24374 | 2026-11-26 | |
| 70 % | 29584 | 2026-12-10 | |
| 50 % | 34382 | 2027-01-01 | |
| 30 % | 46476 | 2027-01-14 | |
| 10 % | 61998 | 2027-01-29 | |
| 05 % | 65998 | 2027-01-31 | |
