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COWLITZ - AT CASTLE ROCK (CASW1) 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 | 1727 | 2404 | 94 | 3136 | 2557 |
| APR-JUL | 1507 | 2148 | 95 | 2719 | 2252 |
| APR-AUG | 1614 | 2291 | 95 | 2914 | 2415 |
| JAN-SEP | 3555 | 4753 | 96 | 6004 | 4932 |
| JAN-JUL | 3369 | 4439 | 96 | 5644 | 4627 |
| OCT-SEP | 4546 | 6235 | 93 | 8053 | 6701 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2026-10-09 Issued: 2026-10-09 Hide Forecast | |||||
| APR-SEP | 1724 | 2403 | 94 | 3141 | 2557 |
| APR-JUL | 1503 | 2149 | 95 | 2717 | 2252 |
| APR-AUG | 1610 | 2292 | 95 | 2916 | 2415 |
| JAN-SEP | 3557 | 4740 | 96 | 6000 | 4932 |
| JAN-JUL | 3371 | 4436 | 96 | 5638 | 4627 |
| OCT-SEP | 4584 | 6212 | 93 | 8021 | 6701 |
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Reference
ESP with 0 Days QPF Ensemble: 2026-10-09 Issued: 2026-10-09 Hide Forecast | |||||
| APR-SEP | 1726 | 2404 | 94 | 3138 | 2557 |
| APR-JUL | 1507 | 2148 | 95 | 2721 | 2252 |
| APR-AUG | 1614 | 2291 | 95 | 2916 | 2415 |
| JAN-SEP | 3606 | 4794 | 97 | 6034 | 4932 |
| JAN-JUL | 3412 | 4460 | 96 | 5673 | 4627 |
| OCT-SEP | 4800 | 6435 | 96 | 8185 | 6701 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
