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

SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Monitor Stage: 24.5 FeetFlood Stage: 29.0 FeetDanger Stage: 29.5 Feet

Observed Data Credit
Gage owner logo

Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

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)
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
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.