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: Jun 19 2019 at 7:59 AM PDTNext Issuance: Jun 20 2019 at 9:00 AM PDT
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
2017*
41,000
30.73
Feb 23, 2017
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
 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)
Today: Sunny. Highs 89 to 99. Northwest winds up to 10 mph.

Tonight: Clear. Lows 56 to 64. Northwest winds up to 15 mph.

Thursday: Sunny. Highs 82 to 92. Northwest winds to around 10 mph.

Thursday Night: Clear. Lows 53 to 59. Northwest winds up to 15 mph.

Friday: Sunny. Highs 80 to 89. Northwest winds up to 15 mph.

Friday Night: Clear. Lows 55 to 63.

Saturday: Sunny, warmer. Highs 86 to 95.

Saturday Night through Monday: Clear. Lows 57 to 64. Highs 86 to 96.

Monday Night: Mostly clear. Lows 54 to 60.

Tuesday: Sunny. Highs 80 to 89.
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.