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 - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Issuance Time: Nov 23 2017 at 8:22 AM PSTNext Issuance: Nov 24 2017 at 9:00 AM PST
Monitor Stage: 24.5 FeetFlood Stage: 29.0 FeetDanger Stage: 29.5 Feet
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS 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.
Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2016*
5,800
14.21
Mar 15, 2016
2015*
1,850
9.66
Dec 18, 2014
2014*
3,080
11.15
Apr 27, 2014
2013*
4,210
12.37
May 4, 2013
2012*
5,840
14.21
Oct 14, 2011
 Historical High Stage/Flow Events (Period of Record - Jul 1922 to Present)
1951*
79,000
27.75
Dec 09, 1950
1997*
75,600
34.88
Jan 05, 1997
1969*
52,600
34.55
Jan 27, 1969
1938*
51,200
26.64
Mar 16, 1938
1956*
50,900
26.89
Dec 25, 1955
1983*
45,100
31.49
Mar 07, 1983
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ019)
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Lows 49 to 57. Northwest winds up to 10 mph.

Friday: Mostly cloudy in the morning then becoming partly cloudy. Highs 66 to 72. Northwest winds up to 10 mph.

Friday Night: Partly cloudy. Lows 49 to 55. Light winds.

Saturday: Partly cloudy in the morning then becoming mostly cloudy. Highs around 71. Southeast winds up to 10 mph.

Saturday Night: Mostly cloudy. Lows around 55. Southeast winds up to 15 mph.

Sunday: Rain likely. Highs 61 to 67.

Sunday Night: Mostly cloudy with a chance of rain. Colder. Lows 43 to 49.

Monday: Mostly cloudy with a slight chance of rain. Highs 54 to 61.

Monday Night: Mostly clear. Lows 37 to 45.

Tuesday: Sunny. Highs 59 to 64.

Tuesday Night and Wednesday: Mostly clear. Patchy fog. Lows 39 to 47. Highs around 63.

Wednesday Night: Partly cloudy. Lows 39 to 47.

Thursday: Mostly sunny. Highs 60 to 65.
Impacts - E19 Information
21.0 FeetSeepage begins into crop area outside of levee.
26.0 FeetSevere seepage occurs outside the levees. The area covered by seepage will increase as the river stage rises.
37.3 FeetStages above 37.3 Feet results 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.