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NISQUALLY - ALDER RESERVOIR (ALRW1) Forecasts for Water Year 2027 |
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Natural Forecast
ESP with 10 Days QPF Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast | |||||
| Forecasts Are in KAF | 30 Year Average (1991-2020) | ||||
| 90 % | 50 % | % Average |
10 % | ||
| APR-SEP | 273 | 370 | 94 | 474 | 395 |
| APR-JUL | 225 | 310 | 95 | 406 | 326 |
| APR-AUG | 254 | 341 | 94 | 436 | 365 |
| JAN-SEP | 545 | 687 | 90 | 916 | 760 |
| JAN-JUL | 494 | 631 | 91 | 855 | 691 |
| OCT-SEP | 675 | 872 | 82 | 1166 | 1059 |
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Experimental
HEFS with 15 days EQPF Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast | |||||
| APR-SEP | 272 | 370 | 94 | 473 | 395 |
| APR-JUL | 225 | 310 | 95 | 407 | 326 |
| APR-AUG | 253 | 341 | 94 | 437 | 365 |
| JAN-SEP | 548 | 687 | 90 | 915 | 760 |
| JAN-JUL | 498 | 630 | 91 | 855 | 691 |
| OCT-SEP | 683 | 892 | 84 | 1173 | 1059 |
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Reference
ESP with 0 Days QPF Ensemble: 2026-10-22 Issued: 2026-10-22 Hide Forecast | |||||
| APR-SEP | 274 | 373 | 95 | 475 | 395 |
| APR-JUL | 226 | 311 | 96 | 409 | 326 |
| APR-AUG | 255 | 343 | 94 | 439 | 365 |
| JAN-SEP | 557 | 693 | 91 | 918 | 760 |
| JAN-JUL | 505 | 640 | 93 | 857 | 691 |
| OCT-SEP | 718 | 948 | 90 | 1241 | 1059 |
| Move the mouse over the desired "Forecast Period" to display a graph. | |||||
APR-SEP
