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

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SAN JOAQUIN RIVER - MENDOTA (SJMC1)
Latitude: 36.78º NLongitude: 120.37º WElevation: 170 Feet
Location: Fresno County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jul 02 2025 at 8:28 AM PDTNext Issuance: Jul 03 2025 at 9:00 AM PDT
Action/Monitor: 10.0 FeetMinor Flood: 14.0 FeetModerate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Bureau of Reclamation.
View US Bureau of Reclamation Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ302)
Today: Sunny. Highs in the upper 90s. Northwest winds up to 10 mph.

Tonight: Clear. Lows in the lower 60s. Northwest winds up to 15 mph.

Thursday: Sunny. Highs in the mid 90s. Northwest winds up to 5 mph shifting to the west 5 to 15 mph in the afternoon.

Thursday Night: Mostly clear. Lows in the upper 50s. West winds 5 to 15 mph. Gusts up to 30 mph in the evening.

Independence Day: Sunny. Highs in the upper 80s. Northwest winds up to 10 mph.

Friday Night through Sunday Night: Clear. Lows 55 to 60. Highs in the lower 90s.

Monday through Tuesday: Clear. Highs in the upper 90s. Lows in the lower 60s.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Joaquin Valley-Hanford Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.