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| S YAMHILL--NEAR WILLAMINA | |
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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. |
| S YAMHILL--NEAR WILLAMINA (WLAO3) Forecasts for Water Year 2027 Ensemble Date: 2026-10-10 Forecast Period: October 10 to February 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 5.00 | 1692 | 2026-11-24 |
| 90 % | 6.00 | 2280 | 2026-11-26 |
| 70 % | 9.00 | 5995 | 2026-12-13 |
| 50 % | 10.00 | 7587 | 2026-12-27 |
| 30 % | 12.00 | 9526 | 2027-01-09 |
| 10 % | 13.00 | 11688 | 2027-01-25 |
| 05 % | 14.00 | 13749 | 2027-01-30 |
