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| HENRYS FORK--ISLAND PARK DAM | |
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| Forecasts are calculated from a forecast time series that approximates flow at a 6 hour time step interval. Observed instantaneous peaks can be higher than model forecast peaks. |
| HENRYS FORK--ISLAND PARK DAM (IPDI1) Forecasts for Water Year 2026 Ensemble Date: 2026-06-14 Forecast Period: June 14 to October 1 | |||
| Exceedence Probability | Inflow CFS | Probable Date of Peak | |
| 95 % | 464 | 2026-06-22 | |
| 90 % | 464 | 2026-06-22 | |
| 70 % | 469 | 2026-06-28 | |
| 50 % | 481 | 2026-07-05 | |
| 30 % | 497 | 2026-07-11 | |
| 10 % | 531 | 2026-09-03 | |
| 05 % | 563 | 2026-09-16 | |
