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COLUMBIA - JOHN DAY DAM (JDAO3) Forecasts for Water Year 2027 |
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Natural Forecast
ESP with 10 Days QPF Ensemble: 2026-10-05 Issued: 2026-10-05 Hide Forecast | |||||
| Forecasts Are in KAF | 30 Year Average (1991-2020) | ||||
| 90 % | 50 % | % Average |
10 % | ||
| APR-SEP | 69267 | 87633 | 92 | 110463 | 94749 |
| APR-JUL | 55671 | 73150 | 90 | 90256 | 81538 |
| APR-AUG | 64448 | 82345 | 92 | 103197 | 89527 |
| JAN-SEP | 81995 | 103296 | 91 | 130070 | 113078 |
| JAN-JUL | 69028 | 87320 | 87 | 111049 | 99868 |
| OCT-SEP | 92939 | 116787 | 91 | 142482 | 128097 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2026-10-05 Issued: 2026-10-05 Hide Forecast | |||||
| APR-SEP | 68420 | 86756 | 92 | 110050 | 94749 |
| APR-JUL | 54903 | 72436 | 89 | 90028 | 81538 |
| APR-AUG | 63519 | 81482 | 91 | 102926 | 89527 |
| JAN-SEP | 81057 | 100779 | 89 | 128531 | 113078 |
| JAN-JUL | 68055 | 85210 | 85 | 110222 | 99868 |
| OCT-SEP | 91709 | 113745 | 89 | 140864 | 128097 |
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Reference
ESP with 0 Days QPF Ensemble: 2026-10-05 Issued: 2026-10-05 Hide Forecast | |||||
| APR-SEP | 69603 | 88863 | 94 | 114133 | 94749 |
| APR-JUL | 56425 | 73676 | 90 | 93816 | 81538 |
| APR-AUG | 65162 | 83155 | 93 | 106932 | 89527 |
| JAN-SEP | 82648 | 103819 | 92 | 134596 | 113078 |
| JAN-JUL | 70179 | 88062 | 88 | 116777 | 99868 |
| OCT-SEP | 95784 | 117140 | 91 | 152184 | 128097 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
