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CALAVERAS RIVER - NEW HOGAN RESERVOIR (NHGC1)
Latitude:
38.16º N
Longitude:
120.81º W
Elevation:
554 Feet
Location: Calaveras County in CA
River Group: San Joaquin
Issuance Time: Jun 16 2025 at 6:27 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.
2025 Water Year Accumulated Volume PlotCSV Ensemble Files (Data in kcfs):  Forecast Group  |  NHGC1
Note: The chart below functions better in landscape orientation.
Created with Highcharts 9.2.1Daily Observed Volumes(1000s Ac-Ft)Water Year 2025 - Day (mm/dd)Water Year Volumes (1000sAc-Ft)Chart context menuCALAVERAS - NEW HOGAN DAM (NHGC1) 06/16/2025Median Forecast: 85.3 kaf | 50% of Mean | 105% of MedianCreated: 06/16/2025 at 06:27 AM PDT171 kafMean171 kafMean171 kafMean171 kafMean81.6 kafMedian81.6 kafMedian81.6 kafMedian81.6 kafMedian565 kafRecord High (1983)565 kafRecord High (1983)565 kafRecord High (1983)565 kafRecord High (1983)7.50 kafRecord Low (1977)7.50 kafRecord Low (1977)7.50 kafRecord Low (1977)7.50 kafRecord Low (1977)Feb 14, 20256.46 kafFeb 14, 20256.46 kaf90%: 85.3 kaf75%: 85.3 kaf50%: 85.3 kaf25%: 85.5 kaf10%: 85.7 kafMin Trace (2019: 85.3 kaf)Median Trace (1998: 85.3 kaf)Max Trace (1983: 86.5 kaf)Volume MedVolume MeanTraces (1980-2023)Record HighRecord LowAccum to Date MeanAccum to Date MedianAccum to Date ObsDaily ObsObs Peak Observed to Date Percent of Mean: 51% (85.3 kaf) Water Year to Date Mean: 168 kaf This product only considers meteorological uncertainty and does not account for hydrologic uncertainty. Means/medians are based on the period of Water Years 1980 through 2023. Legend entries below can be toggled on/off.00.511.522.533.544.555.566.577.510/01202411/01202412/01202401/01202502/01202503/01202504/01202505/01202506/01202507/01202508/01202509/01202509/30202504080120160200240280320360400440480520560600


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ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ067)
Today: Sunny. Highs 79 to 89. Light winds becoming southwest up to 10 mph in the afternoon.

Tonight: Clear. Lows 52 to 62. Prevailing southwest winds up to 10 mph in the evening becoming light.

Tuesday: Sunny. Highs 82 to 92. Light winds becoming west up to 10 mph in the afternoon.

Tuesday Night: Clear. Lows 57 to 65. Prevailing west winds up to 10 mph in the evening becoming light.

Wednesday: Sunny. Highs 87 to 97. Light winds becoming west up to 10 mph in the afternoon.

Wednesday Night: Clear. Lows 59 to 68.

juneteenth: Sunny. Highs 83 to 93.

Thursday Night and Friday: Clear. Lows 52 to 60. Highs 77 to 92.

Friday Night through Sunday: Clear. Lows 48 to 55. Highs 71 to 86.