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COLUMBIA - ROCKY REACH DAM (RRHW1) Forecasts for Water Year 2026 |
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Natural Forecast
ESP with 10 Days QPF Ensemble: 2025-10-13 Issued: 2025-10-13 Hide Forecast | |||||
| Forecasts Are in KAF | 30 Year Average (1991-2020) | ||||
| 90 % | 50 % | % Average |
10 % | ||
| APR-SEP | 48855 | 59918 | 90 | 77956 | 66718 |
| APR-JUL | 39037 | 47355 | 84 | 61303 | 56343 |
| JAN-SEP | 55260 | 67099 | 88 | 86799 | 76041 |
| JAN-JUL | 45442 | 54672 | 83 | 69457 | 65667 |
| OCT-SEP | 61742 | 74649 | 87 | 93574 | 85780 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2025-10-13 Issued: 2025-10-13 Hide Forecast | |||||
| APR-SEP | 49673 | 61196 | 92 | 79073 | 66718 |
| APR-JUL | 39442 | 48542 | 86 | 62346 | 56343 |
| JAN-SEP | 55799 | 68912 | 91 | 87136 | 76041 |
| JAN-JUL | 46395 | 56525 | 86 | 70447 | 65667 |
| OCT-SEP | 62242 | 76036 | 89 | 94856 | 85780 |
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Reference
ESP with 0 Days QPF Ensemble: 2025-10-13 Issued: 2025-10-13 Hide Forecast | |||||
| APR-SEP | 50113 | 61795 | 93 | 79211 | 66718 |
| APR-JUL | 39730 | 49147 | 87 | 62061 | 56343 |
| JAN-SEP | 56257 | 68900 | 91 | 86759 | 76041 |
| JAN-JUL | 46836 | 56245 | 86 | 70039 | 65667 |
| OCT-SEP | 62805 | 76440 | 89 | 93889 | 85780 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
