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| PORTNEUF--AT TOPAZ | |
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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. |
| PORTNEUF--AT TOPAZ (TOPI1) Forecasts for Water Year 2026 Ensemble Date: 2026-03-12 Forecast Period: March 12 to July 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 3.35 | 282 | 2026-03-22 |
| 90 % | 3.35 | 282 | 2026-03-22 |
| 70 % | 3.35 | 282 | 2026-03-22 |
| 50 % | 3.35 | 282 | 2026-03-22 |
| 30 % | 3.38 | 288 | 2026-03-30 |
| 10 % | 3.57 | 348 | 2026-06-03 |
| 05 % | 3.69 | 386 | 2026-06-11 |
