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STANISLAUS RIVER - NEW MELONES RESERVOIR (NMSC1)
Latitude:
37.96º N
Longitude:
120.52º W
Elevation:
1400 Feet
Location: Calaveras County in CA
River Group: San Joaquin
Issuance Time: Jul 10 2025 at 8:29 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 Trend Plot
Tabular View  |  Select a Different Water Year:  
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 (1000s Ac-Ft)Chart context menuSTANISLAUS - NEW MELONES DAM (NMSC1) 07/10/2025Median Forecast: 780 kaf | 66% of Mean | 79% of MedianCreated: 07/10/2025 at 08:29 AM PDTMean: 1190 kafMean: 1190 kafMean: 1190 kafMean: 1190 kafMedian: 984 kafMedian: 984 kafMedian: 984 kafMedian: 984 kafFeb 1413.2 kafFeb 1413.2 kafRecord Low: 145 kaf in 1977Record Low: 145 kaf in 1977Record Low: 145 kaf in 1977Record Low: 145 kaf in 1977Record High: 3100 kaf in 2017Record High: 3100 kaf in 2017Record High: 3100 kaf in 2017Record High: 3100 kaf in 2017WY Volume MeanWY Volume MedianWY to Date ObsWY to Date MeanWY to Date MedianDaily ObsObs PeakWY Vol Fcst 50%WY Vol Fcst 25/75%WY Vol Fcst 10/90%WY Vol Fcst Max/MinRecord LowRecord HighSnow Model Updates Observed to Date Percent of Mean: 68% (757 kaf) Water Year to Date Mean: 1120 kaf Historical Water Year Vol Max: 3100 kaf in 2017 Historical Water Year Vol Min: 145 kaf in 1977 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.01.22.43.64.867.28.49.610.81213.214.410/01202411/01202412/01202401/01202502/01202503/01202504/01202505/01202506/01202507/01202508/01202509/01202509/30202504008001200160020002400280032003600400044004800

Location Photographs

ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ067)
Tonight: Clear, haze. Lows 64 to 72. Light winds.

Friday: Sunny. Highs 92 to 102. Light winds becoming west up to 10 mph in the afternoon.

Friday Night: Clear. Lows 66 to 74. Prevailing west winds up to 10 mph in the evening becoming light.

Saturday: Sunny. Highs 91 to 101. Light winds becoming west up to 10 mph in the afternoon.

Saturday Night: Clear. Lows 63 to 73. Prevailing west winds up to 10 mph in the evening becoming light.

Sunday: Sunny. Highs 90 to 100.

Sunday Night: Clear. Lows 63 to 73.

Monday through Tuesday Night: Clear. Highs 88 to 101. Lows 58 to 73.

Wednesday through Thursday: Clear. Highs 83 to 94. Lows 57 to 68.