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: Apr 24 2025 at 8:06 AM PDTNext Issuance: Apr 25 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: Mostly cloudy early in the morning then becoming mostly sunny. A 50 percent chance of rain late in the afternoon. Highs in the upper 60s. Northwest winds up to 10 mph shifting to the south in the afternoon.

Tonight: Mostly cloudy with a 50 percent chance of rain. Lows in the upper 40s. Northwest winds up to 10 mph.

Saturday: Chance of rain in the morning, then rain showers likely in the afternoon. Highs in the mid 60s. Northwest winds up to 5 mph shifting to the southwest around 5 mph in the afternoon. Chance of precipitation 60 percent.

Saturday Night: Mostly cloudy with a 40 percent chance of rain. Lows in the upper 40s. West winds up to 10 mph.

Sunday: Partly sunny. Highs in the mid 60s. South winds up to 10 mph.

Sunday Night: Mostly clear. Lows in the mid 40s.

Monday and Monday Night: Clear. Highs in the mid 70s. Lows around 50.

Tuesday through Wednesday Night: Mostly clear. Highs in the mid 80s. Lows in the mid 50s.

Thursday: Sunny. Highs in the upper 80s.
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.