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| COWLITZ--NEAR KOSMOS | |
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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. |
| COWLITZ--NEAR KOSMOS (COKW1) Forecasts for Water Year 2026 Ensemble Date: 2026-01-23 Forecast Period: January 23 to May 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 69.44 | 6922 | 2026-02-06 |
| 90 % | 69.88 | 7606 | 2026-02-09 |
| 70 % | 71.35 | 10134 | 2026-02-22 |
| 50 % | 72.86 | 13186 | 2026-03-09 |
| 30 % | 76.05 | 21254 | 2026-03-29 |
| 10 % | 77.34 | 25174 | 2026-04-15 |
| 05 % | 80.96 | 38412 | 2026-04-21 |
