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 CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Feb 23 2024 at 7:53 AM PSTNext Issuance: Feb 23 2024 at 3:00 PM PST
Monitor Stage: 19.5 FeetFlood Stage: 28.5 FeetDanger Stage: 29.5 Feet

Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.
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.

Verification - Historical Graphical RVF
Month:  
Day:  
Year:  
Cycle:  
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
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
Impacts - E19 Information
33.1 FeetStages above 30.7 feet result in flooding outside the levees. Top of levee.
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Patchy fog in the morning. Mostly cloudy. Highs 60 to 66. Northwest winds up to 10 mph.

Tonight: Partly cloudy. Lows 40 to 48. Light winds.

Saturday: Patchy fog in the morning. Mostly sunny. Highs 66 to 72. North winds up to 10 mph.

Saturday Night: Clear. Patchy fog after midnight. Lows 42 to 48. Light winds.

Sunday: Patchy fog in the morning. Mostly sunny. Highs 62 to 69. Light winds becoming southwest around 10 mph in the afternoon.

Sunday Night: Mostly cloudy with a slight chance of rain showers. Patchy fog. Lows around 50.

Monday: Mostly cloudy with a chance of rain showers. Patchy fog. Highs 56 to 63.

Monday Night: Mostly cloudy with a chance of rain showers. Colder. Lows 37 to 43.

Tuesday: Mostly sunny. Highs 53 to 62.

Tuesday Night: Clear. Lows around 39.

Wednesday and Wednesday Night: Mostly clear. Highs 57 to 65. Lows 39 to 46.

Thursday: Partly cloudy with a slight chance of rain showers. Highs 57 to 65.
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.