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COLUMBIA - CHIEF JOSEPH DAM (CHJW1) Forecasts for Water Year 2027 |
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Natural Forecast
ESP with 10 Days QPF Ensemble: 2026-10-10 Issued: 2026-10-10 Hide Forecast | |||||
| Forecasts Are in KAF | 30 Year Average (1991-2020) | ||||
| 90 % | 50 % | % Average |
10 % | ||
| APR-SEP | 46792 | 57871 | 93 | 73115 | 62551 |
| APR-JUL | 36713 | 45218 | 86 | 57214 | 52569 |
| APR-AUG | 43112 | 52924 | 90 | 67740 | 58764 |
| JAN-SEP | 52971 | 64616 | 91 | 80926 | 71305 |
| JAN-JUL | 43100 | 52353 | 85 | 64762 | 61324 |
| OCT-SEP | 59574 | 71325 | 89 | 88832 | 80453 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2026-10-10 Issued: 2026-10-10 Hide Forecast | |||||
| APR-SEP | 46902 | 57999 | 93 | 73520 | 62551 |
| APR-JUL | 37136 | 45547 | 87 | 57350 | 52569 |
| APR-AUG | 43247 | 53152 | 90 | 67940 | 58764 |
| JAN-SEP | 53137 | 64295 | 90 | 81168 | 71305 |
| JAN-JUL | 43525 | 53207 | 87 | 64948 | 61324 |
| OCT-SEP | 60242 | 71432 | 89 | 89273 | 80453 |
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Reference
ESP with 0 Days QPF Ensemble: 2026-10-10 Issued: 2026-10-10 Hide Forecast | |||||
| APR-SEP | 48772 | 59473 | 95 | 75052 | 62551 |
| APR-JUL | 37936 | 46571 | 89 | 58522 | 52569 |
| APR-AUG | 44902 | 55118 | 94 | 69406 | 58764 |
| JAN-SEP | 54880 | 66426 | 93 | 82775 | 71305 |
| JAN-JUL | 44516 | 53834 | 88 | 66911 | 61324 |
| OCT-SEP | 62028 | 75178 | 93 | 90677 | 80453 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
