| ||||||||||||||||||
| TUOLUMNE RIVER - HETCH HETCHY RESERVOIR (HETC1) | ||||||||||||||||||
| Latitude: 37.95º N | Longitude: 119.79º W | Elevation: 3870 Feet | ||||||||||||||||
| Location: Tuolumne County in CA | ||||||||||||||||||
| River Group: San Joaquin | ||||||||||||||||||
| Issuance Time: | May 05 2025 at 8:25 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 05/03/2025 6.4kaf | ||||
| Forecast Peak 1-Day Streamflow Volume: (Current Date at 12 UTC to August 1 at 12 UTC) | 10% (Max) 06/05/2025 14.0kaf | 25% 05/23/2025 12.9kaf | 50% (Prob) 05/12/2025 12.1kaf | 75% 05/11/2025 11.4kaf | 90% (Min) 05/11/2025 10.5kaf |
| Tabular 5-Day Volume Accumulations (1000s of Acre-Feet) | ||||
| Probability | 05/05 to 05/10 | 05/10 to 05/15 | 05/15 to 05/20 | 05/20 to 05/25 |
| 10% | 38.8 kaf | 57.1 kaf | 54.8 kaf | 48.6 kaf |
| 25% | 36.7 kaf | 53.5 kaf | 45.2 kaf | 44.8 kaf |
| 50% (Median) | 35.0 kaf | 46.9 kaf | 36.9 kaf | 38.1 kaf |
| 75% | 34.0 kaf | 43.0 kaf | 31.0 kaf | 28.8 kaf |
| 90% | 32.8 kaf | 40.0 kaf | 27.1 kaf | 25.7 kaf |
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ323) |
| Today: Sunny. Highs 45 to 61. North winds up to 10 mph shifting to the northwest in the afternoon. Gusts up to 25 mph. Tonight: Mostly clear. Lows 25 to 41. Northeast winds up to 10 mph with gusts to around 25 mph. Wednesday: Sunny. Highs 49 to 63. East winds up to 5 mph shifting to the west in the afternoon. Wednesday Night: Mostly clear. Lows 31 to 45. West winds up to 10 mph shifting to the east after midnight. Thursday: Warmer, sunny. Highs 54 to 68. East winds up to 5 mph shifting to the southwest in the afternoon. Thursday Night: Partly cloudy. Lows 35 to 49. Friday through Saturday Night: Mostly clear. Highs 57 to 73. Lows 36 to 51. Sunday: Sunny. Highs 50 to 64. Sunday Night and Monday: Cooler. Partly cloudy. Lows 28 to 40. Highs 39 to 53. |