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| MIDDLE FORK COSUMNES RIVER - SOMERSET (SOSC1) | ||||||||||||||||||
| Latitude: 38.62º N | Longitude: 120.70º W | Elevation: 1821 Feet | ||||||||||||||||
| Location: El Dorado County in CA | ||||||||||||||||||
| River Group: San Joaquin | ||||||||||||||||||
| Issuance Time: | Feb 02 2026 at 7:50 AM PST |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. Flow data on this product are unregulated / full natural flow. |
| 4x5-Day Probability Plot |
| Tabular 4 x 5-Day Streamflow Volume Data | |||||
| Observed Peak 1-Day Streamflow Volume: (April 1 at 12 UTC to August 1 at 12 UTC) | Observed Available Apr 2 to Aug 1 | ||||
| Forecast Peak 1-Day Streamflow Volume: (April 1 at 12 UTC to August 1 at 12 UTC) | 10% (Max) 05/05/2026 4.8kaf | 25% 04/28/2026 2.1kaf | 50% (Prob) 04/14/2026 1.1kaf | 75% 04/03/2026 0.6kaf | 90% (Min) 04/01/2026 0.5kaf |
| Tabular 5-Day Volume Accumulations (1000s of Acre-Feet) | ||||
| Probability | 02/02 to 02/07 | 02/07 to 02/12 | 02/12 to 02/17 | 02/17 to 02/22 |
| 10% | 1.2 kaf | 2.3 kaf | 6.5 kaf | 7.2 kaf |
| 25% | 1.2 kaf | 1.4 kaf | 2.7 kaf | 4.5 kaf |
| 50% (Median) | 1.2 kaf | 1.2 kaf | 1.4 kaf | 2.0 kaf |
| 75% | 1.2 kaf | 1.2 kaf | 1.1 kaf | 0.9 kaf |
| 90% | 1.2 kaf | 1.1 kaf | 1.0 kaf | 0.8 kaf |
| Location Photographs | ||
| ESRI™ Locator Map |