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COLUMBIA - BLO ROCK ISLAND DAM (RISW1) Forecasts for Water Year 2027 |
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Natural Forecast
ESP with 10 Days QPF Ensemble: 2026-10-09 Issued: 2026-10-09 Hide Forecast | |||||
| Forecasts Are in KAF | 30 Year Average (1991-2020) | ||||
| 90 % | 50 % | % Average |
10 % | ||
| APR-SEP | 50862 | 62108 | 91 | 80140 | 68217 |
| APR-JUL | 39720 | 49490 | 86 | 63438 | 57718 |
| APR-AUG | 46763 | 56987 | 89 | 74408 | 64240 |
| JAN-SEP | 57453 | 69943 | 90 | 89291 | 77883 |
| JAN-JUL | 46928 | 57680 | 86 | 71897 | 67384 |
| OCT-SEP | 64266 | 78609 | 89 | 96987 | 87957 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2026-10-09 Issued: 2026-10-09 Hide Forecast | |||||
| APR-SEP | 50996 | 62370 | 91 | 81450 | 68217 |
| APR-JUL | 40044 | 49538 | 86 | 64238 | 57718 |
| APR-AUG | 47174 | 57642 | 90 | 75534 | 64240 |
| JAN-SEP | 57479 | 69518 | 89 | 89739 | 77883 |
| JAN-JUL | 47497 | 57703 | 86 | 72866 | 67384 |
| OCT-SEP | 64793 | 78829 | 90 | 98163 | 87957 |
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Reference
ESP with 0 Days QPF Ensemble: 2026-10-09 Issued: 2026-10-09 Hide Forecast | |||||
| APR-SEP | 52034 | 64396 | 94 | 82749 | 68217 |
| APR-JUL | 41079 | 51100 | 89 | 65162 | 57718 |
| APR-AUG | 48065 | 59563 | 93 | 76765 | 64240 |
| JAN-SEP | 59036 | 71503 | 92 | 90818 | 77883 |
| JAN-JUL | 48837 | 59090 | 88 | 73831 | 67384 |
| OCT-SEP | 66221 | 81354 | 92 | 98547 | 87957 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
