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

Latitude: 37.79º NLongitude: 121.31º WElevation: 32 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Issuance Time: Jan 16 2018 at 7:36 AM PSTNext Issuance: Jan 16 2018 at 3:00 PM PST
Monitor Stage: 19.5 FeetFlood Stage: 28.5 FeetDanger Stage: 29.5 Feet
Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Verification - Historical Graphical RVF
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
 Most Recent 5 Years
Mar 16, 2016
Dec 21, 2014
Apr 19, 2014
Dec 26, 2012
-- 7.89 May 15, 2012
 Historical High Stage/Flow Events (Period of Record - Jan 1920 to Present)*
Dec 10, 1950
Jan 9, 1997

Jan 27, 1969

1967 -- 18.10** Jan 24, 1967
2006 -- 17.19** Apr 13, 2006
 * No data was available Sep 2006 to Apr 2007
 ** Datum changed from NGVD29 to NAVD88 on 10/01/2006. The difference is +2.38 ft.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Mostly cloudy. A slight chance of rain showers in the morning. Areas of fog in the morning. Highs around 60. Light winds.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows 44 to 50. Light winds.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs around 61. Light winds.

Wednesday Night: Mostly cloudy. Lows around 47. Light winds.

Thursday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs 57 to 62. South winds up to 10 mph.

Thursday Night: Mostly cloudy with a chance of rain. Lows 42 to 48.

Friday: Mostly cloudy with a chance of rain showers. Highs 49 to 55.

Friday Night: Mostly cloudy with a chance of rain showers. Colder. Lows 32 to 40.

Saturday: Mostly sunny. Highs 49 to 54.

Saturday Night: Partly cloudy. Lows 33 to 41.

Sunday and Sunday Night: Mostly cloudy with a chance of rain. Highs 50 to 56. Lows 35 to 45.

Monday: Rain likely. Highs 51 to 56.
Impacts - E19 Information
33.1 FeetStages above 30.7 feet result in flooding outside the levees. Top of levee.
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 Sacramento 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.