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| GRANDE RONDE--NEAR PERRY | |
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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. |
| GRANDE RONDE--NEAR PERRY (LGNO3) Forecasts for Water Year 2022 Ensemble Date: 2021-12-08 Forecast Period: December 8 to April 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 2.19 | 319 | 2022-02-09 |
| 90 % | 2.46 | 450 | 2022-02-22 |
| 70 % | 3.00 | 815 | 2022-03-17 |
| 50 % | 3.40 | 1163 | 2022-03-24 |
| 30 % | 4.00 | 1777 | 2022-03-28 |
| 10 % | 4.63 | 2516 | 2022-03-31 |
| 05 % | 5.21 | 3304 | 2022-04-01 |
