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 - MOSSDALE (MOSC1)
Latitude: 37.79º NLongitude: 121.31º WElevation: 32 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Issuance Time: Jan 26 2021 at 2:27 PM PSTNext Issuance: Jan 27 2021 at 9:00 AM 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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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
2019
--
14.31
Jun 6, 2019
2018
--
10.43
Apr 8, 2018
2017
-- 21.70 Feb 23, 2017
2016
--
7.29
Mar 16, 2016
2015
--
6.99
Dec 21, 2014
 Historical High Stage/Flow Events (Period of Record - Jan 1920 to Present)*
1951
--
24.40**
Dec 10, 1950
1997
--
23.24**
Jan 9, 1997
2017
-- 21.70 Feb 23, 2017
1969
--
20.31**

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 and must be applied to all data before date to convert to NAVD88
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Rain showers. Windy. Highs 46 to 52. Southeast winds 20 to 35 mph. Gusts up to 55 mph decreasing to 40 mph in the afternoon.

Tonight: Heavy rain showers. Breezy. Lows 43 to 49. Southeast winds 15 to 25 mph.

Thursday: Rain showers. Breezy. Highs 48 to 56. Southeast winds 10 to 25 mph.

Thursday Night: Rain showers likely. Lows 39 to 45. Southeast winds 10 to 15 mph.

Friday: Mostly cloudy. A chance of rain showers in the morning, then a slight chance of rain showers in the afternoon. Highs 49 to 56. South winds up to 10 mph.

Friday Night: Mostly cloudy with a slight chance of rain showers. Lows 39 to 45.

Saturday: Mostly cloudy with a slight chance of rain showers. Highs 52 to 58.

Saturday Night: Mostly cloudy. Lows 39 to 45.

Sunday: Mostly cloudy with a slight chance of rain showers. Highs 55 to 61.

Sunday Night through Tuesday: Mostly cloudy with a chance of rain showers. Lows 41 to 49. Highs 50 to 60.
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.