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

 | 

SAN JOAQUIN RIVER - MOSSDALE (MOSC1)
Latitude: 37.79º NLongitude: 121.31º WElevation: 32 Feet
Location: San Joaquin County in CaliforniaRiver Group: San Joaquin
Monitor Stage: 19.5 FeetFlood Stage: 28.5 FeetDanger Stage: 29.5 Feet

Observed Data Credit
Gage owner logo

Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2022
-- 7.51 Oct 24, 2021
2021
--
6.74
Jun 27, 2021
2020
--
7.93
Dec 13, 2019
2019
--
14.31
Jun 6, 2019
2018
--
10.43
Apr 8, 2018
 Historical High Stage/Flow Events (Period of Record - Jan 1920 to Present)* - Ranked by Stage
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: Mostly cloudy. A slight chance of showers and thunderstorms early in the afternoon. A chance of rain showers and a slight chance of thunderstorms late in the afternoon. Highs 60 to 70. West winds 10 to 15 mph with gusts to around 30 mph.

Tonight: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows 43 to 51. West winds 10 to 15 mph. Gusts up to 35 mph decreasing to 25 mph after midnight.

Saturday: Sunny. Highs 66 to 75. Northwest winds 10 to 15 mph.

Saturday Night: Mostly clear. Lows 46 to 52. Northwest winds 10 to 15 mph.

Sunday: Sunny. Highs 69 to 78. Northwest winds up to 15 mph.

Sunday Night: Clear. Lows 44 to 50.

Monday: Sunny. Highs 70 to 78.

Monday Night through Wednesday Night: Clear. Lows 47 to 56. Highs 72 to 82.

Thursday: Mostly sunny. Highs 72 to 80.
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.