National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service



SAN JOAQUIN RIVER - PATTERSON (PATC1)
Latitude: 37.49º NLongitude: 121.08º WElevation: 97 Feet
Location: Stanislaus County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jul 01, 2025 at 11:50 AM PDT
Action/Monitor: 48.0 FeetMinor Flood: 54.7 FeetModerate Flood: 57.3 FeetMajor Flood: 58.3 Feet
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  PATC1

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What information is considered in this forecast?
Verification / Historical Plots
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Location Photographs

ESRI™ Locator Map
Flood Impacts
58.3 FeetStages above 58.3 feet result in flooding outside the levee. Top of levee.
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Sunny. Highs 91 to 99. Northwest winds up to 10 mph. Gusts up to 20 mph in the afternoon.

Tonight: Clear. Lows 58 to 68. Northwest winds up to 15 mph.

Wednesday: Sunny. Highs 92 to 99. Northwest winds up to 10 mph. Gusts up to 20 mph in the afternoon.

Wednesday Night: Clear. Lows 59 to 67. Northwest winds up to 15 mph.

Thursday: Sunny. Highs 87 to 95. West winds up to 10 mph with gusts to around 20 mph.

Thursday Night: Mostly clear. Lows 56 to 62.

Independence Day: Sunny. Highs 82 to 90.

Friday Night through Monday: Clear. Lows 53 to 63. Highs 85 to 95.