| UMATILLA - NEAR GIBBON Forecasts For Water Year 2026 | ||||||
| Official Water Supply ESP with 10 days QPF Ensemble: 2026-09-03 Issued: 2026-09-03 | ||||||
| Forecast Period |
Forecasts Are in KAF | Obs Runoff (2026-09-03) |
30 Year Average (1991-2020) | |||
| 90 % | 50 % | % Average |
10 % | |||
| OCT | 3.3 | 3.3 | ||||
| NOV | 3.2 | 7.1 | ||||
| DEC | 23 | 14 | ||||
| JAN | 19 | 18 | ||||
| FEB | 12 | 21 | ||||
| MAR | 37 | 28 | ||||
| APR | 36 | 36 | ||||
| MAY | 8.1 | 28 | ||||
| JUN | 3.3 | 9.9 | ||||
| JUL | 2.2 | 3.5 | ||||
| AUG | 2.3 | 2.7 | ||||
| SEP | 2.2 | 2.2 | 85 | 2.3 | 0.2* | 2.6 |
| Move the mouse over the desired "Forecast Table" to update graph. * Partial Monthly Total | ||||||
| CSV Download | ||||||
| UMATILLA - NEAR GIBBON Forecasts For Water Year 2026 | ||||||
| Experimental Water Supply HEFS with 15 days EQPF Ensemble: 2026-09-03 Issued: 2026-09-03 | ||||||
| Forecast Period |
Forecasts Are in KAF | Obs Runoff (2026-09-03) |
30 Year Average (1991-2020) | |||
| 90 % | 50 % | % Average |
10 % | |||
| OCT | 3.3 | 3.3 | ||||
| NOV | 3.2 | 7.1 | ||||
| DEC | 23 | 14 | ||||
| JAN | 19 | 18 | ||||
| FEB | 12 | 21 | ||||
| MAR | 37 | 28 | ||||
| APR | 36 | 36 | ||||
| MAY | 8.1 | 28 | ||||
| JUN | 3.3 | 9.9 | ||||
| JUL | 2.2 | 3.5 | ||||
| AUG | 2.3 | 2.7 | ||||
| SEP | 2.2 | 2.2 | 86 | 2.4 | 0.2* | 2.6 |
| Move the mouse over the desired "Forecast Table" to update graph. * Partial Monthly Total | ||||||
| CSV Download | ||||||
| UMATILLA - NEAR GIBBON Forecasts For Water Year 2026 | ||||||
| Reference ESP with 0 days QPF Ensemble: 2026-09-03 Issued: 2026-09-03 | ||||||
| Forecast Period |
Forecasts Are in KAF | Obs Runoff (2026-09-03) |
30 Year Average (1991-2020) | |||
| 90 % | 50 % | % Average |
10 % | |||
| OCT | 3.3 | 3.3 | ||||
| NOV | 3.2 | 7.1 | ||||
| DEC | 23 | 14 | ||||
| JAN | 19 | 18 | ||||
| FEB | 12 | 21 | ||||
| MAR | 37 | 28 | ||||
| APR | 36 | 36 | ||||
| MAY | 8.1 | 28 | ||||
| JUN | 3.3 | 9.9 | ||||
| JUL | 2.2 | 3.5 | ||||
| AUG | 2.3 | 2.7 | ||||
| SEP | 2.2 | 2.2 | 85 | 2.3 | 0.2* | 2.6 |
| Move the mouse over the desired "Forecast Table" to update graph. * Partial Monthly Total | ||||||
| CSV Download | ||||||
