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| NISQUALLY--NEAR NATIONAL | |
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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--NEAR NATIONAL (NISW1) Forecasts for Water Year 2026 Ensemble Date: 2026-04-15 Forecast Period: April 15 to August 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 5.70 | 1107 | 2026-04-23 |
| 90 % | 5.70 | 1107 | 2026-04-23 |
| 70 % | 5.90 | 1286 | 2026-05-07 |
| 50 % | 6.21 | 1621 | 2026-05-13 |
| 30 % | 6.52 | 2008 | 2026-05-29 |
| 10 % | 7.71 | 3881 | 2026-06-14 |
| 05 % | 7.76 | 3982 | 2026-06-18 |
