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

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MORMON SLOUGH - BELLOTA (MSGC1)
Latitude: 38.05º NLongitude: 121.01º WElevation: 130 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Monitor Stage: 16.0 FeetFlood Stage: 22.0 FeetDanger Stage: 23.0 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.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2023*
11,400
21.80
Jan 16, 2023
2022*
1,950
9.21
Oct 25, 2021
2021*
839
6.78
Jan 28, 2021
2020*
308
5.17
Mar 17, 2020
2019*
6,080
15.14
Mar 6, 2019
 Historical High Stage/Flow Events (Period of Record - Dec 1997 to Present) - Ranked by Flow
2023*
11,400
21.80
Jan 16, 2023
1998*
9,395
18.48
Feb 3, 1998
2006*
9,328
18.40
Apr 4, 2006
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Impacts - E19 Information
9.0 FeetWater rises out of the pilot channel but not yet on the levee slopes.
14.2 FeetUOP research within the Calaveras River channel is affected by water levels.
16.0 FeetBike trail within lower Calaveras River channel is flooded
22.0 FeetFlood Stage.
23.0 FeetDanger Stage.
31.9 FeetWater will overflow toward Bellota and Highway 26.
Official 7 Day National Weather Service Forecast   (CAZ019)
Tonight: Clear. Lows 50 to 58. West winds up to 15 mph with gusts to around 25 mph.

Wednesday: Sunny. Highs 80 to 89. Northwest winds up to 15 mph with gusts to around 25 mph.

Wednesday Night: Clear. Lows 54 to 62. Northwest winds up to 15 mph. Gusts up to 25 mph in the evening.

Thursday: Sunny. Highs 86 to 94. Northwest winds up to 10 mph with gusts to around 20 mph.

Thursday Night: Clear. Lows 57 to 65. Northwest winds up to 10 mph with gusts to around 20 mph.

Friday: Sunny. Highs 89 to 97.

Friday Night: Clear. Lows 54 to 62.

Saturday and Saturday Night: Clear. Highs 83 to 92. Lows 53 to 62.

Sunday through Monday Night: Mostly clear. Highs 82 to 92. Lows 54 to 64.

Tuesday: Mostly sunny. Highs 89 to 97.
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.