| ||||||||||||||||||
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: | Jul 09 2025 at 7:47 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 05/12/2025 12.1kaf |
Forecast Peak 1-Day Streamflow Volume: (Current Date at 12 UTC to August 1 at 12 UTC) | 10% (Max) 07/10/2025 0.5kaf | 25% 07/10/2025 0.5kaf | 50% (Prob) 07/10/2025 0.5kaf | 75% 07/10/2025 0.5kaf | 90% (Min) 07/10/2025 0.5kaf |
Tabular 5-Day Volume Accumulations (1000s of Acre-Feet) | ||||
Probability | 07/09 to 07/14 | 07/14 to 07/19 | 07/19 to 07/24 | 07/24 to 07/29 |
10% | 2.4 kaf | 2.1 kaf | 1.8 kaf | 1.6 kaf |
25% | 2.4 kaf | 2.1 kaf | 1.8 kaf | 1.6 kaf |
50% (Median) | 2.4 kaf | 2.1 kaf | 1.8 kaf | 1.6 kaf |
75% | 2.4 kaf | 2.1 kaf | 1.8 kaf | 1.6 kaf |
90% | 2.4 kaf | 2.1 kaf | 1.8 kaf | 1.6 kaf |
Location Photographs | ||
ESRI™ Locator Map |
Official 7 Day National Weather Service Forecast (CAZ323) |
Today: Sunny. Highs 63 to 77. Southwest winds up to 15 mph with gusts to around 30 mph. Tonight: Clear. Lows 40 to 56. Southwest winds up to 10 mph with gusts to around 25 mph shifting to the east after midnight. Thursday: Sunny. Highs 68 to 80. East winds up to 10 mph shifting to the west in the afternoon. Thursday Night: Clear. Lows 45 to 59. West winds 5 to 10 mph shifting to the east after midnight. Friday: Sunny. Highs 69 to 83. East winds up to 10 mph shifting to the southwest in the afternoon. Friday Night through Monday: Clear. Lows 46 to 62. Highs 71 to 84. Monday Night: Mostly clear. Lows 48 to 62. Tuesday: Sunny. Highs 71 to 83. |