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CHOWCHILLA RIVER - BUCHANAN RESERVOIR (BHNC1)
Latitude:
37.21º N		Longitude:
119.97º W		Elevation:
450 Feet
Location: Madera County in CA
River Group: San Joaquin
Issuance Time: Jun 16 2025 at 6:30 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 menuCHOWCHILLA - BUCHANAN DAM (BHNC1) 06/16/2025​Median Forecast: 29.7 kaf | 39% of Mean | 127% of MedianCreated: 06/16/2025 at 06:30 AM PDTMean: 76.8 kaf​Mean: 76.8 kafMean: 76.8 kaf​Mean: 76.8 kafMedian: 23.4 kaf​Median: 23.4 kafMedian: 23.4 kaf​Median: 23.4 kafFeb 15​2.81 kaf​Feb 15​2.81 kafRecord Low: ​0.84 kaf in 2015​Record Low: ​0.84 kaf in 2015Record Low: ​0.84 kaf in 2015​Record Low: ​0.84 kaf in 2015Record High: ​341 kaf in 1983​Record High: ​341 kaf in 1983Record High: ​341 kaf in 1983​Record High: ​341 kaf in 1983WY 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: 39% (29.8 kaf) Water Year to Date Mean: 75.8 kaf​ Historical Water Year Vol Max: 341 kaf in 1983 Historical Water Year Vol Min: 0.84 kaf in 2015​ 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.00.250.50.7511.251.51.7522.252.52.75310/01​202411/01​202412/01​202401/01​202502/01​202503/01​202504/01​202505/01​202506/01​202507/01​202508/01​202509/01​202509/30​2025050100150200250300350400450500550600

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ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ317)
Today: Not as warm. Sunny. Highs in the lower 80s. West winds up to 15 mph.

Tonight: Clear. Lows in the upper 40s. Northwest winds 5 to 15 mph.

Saturday: Sunny. Highs in the upper 70s. Northwest winds 5 to 15 mph with gusts to around 30 mph.

Saturday Night: Clear. Lows in the mid 50s. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening.

Sunday: Sunny. Highs in the mid 80s. Northwest winds up to 5 mph shifting to the west in the afternoon.

Sunday Night and Monday: Clear. Lows in the upper 50s. Highs in the upper 80s.

Monday Night and Tuesday: Mostly clear. Lows in the lower 60s. Highs in the lower 90s.

Tuesday Night through Thursday: Clear. Lows in the mid 60s. Highs in the mid 90s.