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 CaliforniaRiver Group: 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
2021*
839
6.78
Jan 28, 2021
2020*
308
5.17
Mar 17, 2020
2019*
6,080
15.14
Mar 6, 2019
2018*
2,180
9.62
Nov 26, 2017
2017*
7,650
17.34
Feb 10, 2017
 Historical High Stage/Flow Events (Period of Record - Dec 1997 to Present) - Ranked by Flow
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
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Sunny in the morning then becoming partly cloudy. Highs 82 to 92. Northwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Tonight: Mostly cloudy in the evening then clearing. Lows 53 to 59. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Friday: Mostly cloudy in the morning then becoming partly cloudy. Highs 81 to 89. Northwest winds up to 15 mph. Gusts up to 25 mph in the afternoon.

Friday Night: Mostly clear. Lows 53 to 59. West winds 10 to 20 mph.

Saturday: Partly cloudy. Highs 73 to 81. West winds 10 to 15 mph with gusts to around 25 mph.

Saturday Night: Mostly clear. Lows 49 to 55.

Sunday: Sunny. Highs 71 to 79.

Sunday Night through Monday Night: Clear. Lows 46 to 56. Highs 72 to 82.

Tuesday and Tuesday Night: Clear. Highs 82 to 92. Lows 50 to 60.

Wednesday: Sunny. Highs 88 to 96.
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.
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.