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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: | Apr 11 2026 at 8:28 AM PDT |
| 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 Current Date at 12 UTC) | Observed 04/03/2026 0.7kaf | ||||
| Forecast Peak 1-Day Streamflow Volume: (Current Date at 12 UTC to August 1 at 12 UTC) | 10% (Max) 05/03/2026 3.2kaf | 25% 04/21/2026 2.2kaf | 50% (Prob) 04/13/2026 1.3kaf | 75% 04/13/2026 1.1kaf | 90% (Min) 04/13/2026 1.0kaf |
| Tabular 5-Day Volume Accumulations (1000s of Acre-Feet) | ||||
| Probability | 04/11 to 04/16 | 04/16 to 04/21 | 04/21 to 04/26 | 04/26 to 05/01 |
| 10% | 7.4 kaf | 6.5 kaf | 8.0 kaf | 6.1 kaf |
| 25% | 6.0 kaf | 5.6 kaf | 5.0 kaf | 3.4 kaf |
| 50% (Median) | 4.6 kaf | 4.2 kaf | 3.5 kaf | 2.3 kaf |
| 75% | 4.0 kaf | 3.3 kaf | 2.2 kaf | 1.7 kaf |
| 90% | 3.5 kaf | 2.8 kaf | 1.8 kaf | 1.4 kaf |
| Location Photographs | ||
| ESRI™ Locator Map |