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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: 2026-07-10 Forecast Period: July 10 to November 1 | |||
| Exceedence Probability | Stage feet | Discharge CFS | Probable Date of Peak |
| 95 % | 3.04 | 153 | 2026-07-23 |
| 90 % | 3.08 | 163 | 2026-07-27 |
| 70 % | 3.20 | 190 | 2026-09-10 |
| 50 % | 3.26 | 206 | 2026-09-22 |
| 30 % | 3.37 | 234 | 2026-10-05 |
| 10 % | 3.50 | 271 | 2026-10-28 |
| 05 % | 3.57 | 293 | 2026-10-30 |
