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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 6:20 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.
Monthly Probability Plot
Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Jun 16 2025 at 6:25 AM PDT
ProbJun*JulAugSepOctNov
10%4.30.00.00.42.07.1
25%4.30.00.00.11.12.8
50%4.30.00.00.00.31.6
75%4.30.00.00.00.10.5
90%4.30.00.00.00.00.2
Mean2.41.10.70.70.94.3
%Mean179.20.00.00.033.337.2
ProbDecJanFebMarAprMay
10%59.3111.2112.1125.042.622.0
25%22.551.960.756.723.89.8
50%6.916.520.726.610.04.9
75%1.54.37.612.54.11.9
90%0.71.72.13.62.71.2
Mean17.237.739.841.418.56.6
%Mean40.143.852.064.354.174.2
Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %)
Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast.

Location Photographs

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.