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
Issuance Time: May 18 2021 at 7:55 AM PDTNext Issuance: May 19 2021 at 9:00 AM PDT
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.

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
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
2016*
2,281
9.84
Jan 18, 2016
 Historical High Stage/Flow Events (Period of Record - Dec 1997 to Present)
2006*
9,328
18.40
Apr 4, 2006
1998*
9,395
18.48
Feb 3, 1998
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ019)
Today: Sunny. Highs 79 to 86. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Tonight: Clear. Lows 43 to 51. West winds 10 to 20 mph with gusts to around 30 mph.

Wednesday: Sunny. Highs 71 to 80. West winds 10 to 15 mph with gusts to around 25 mph.

Wednesday Night: Clear, breezy. Lows 39 to 47. West winds 15 to 25 mph decreasing to 10 to 15 mph after midnight.

Thursday: Sunny. Highs 65 to 75. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Thursday Night: Mostly clear. Lows 43 to 51.

Friday: Mostly sunny. Highs 69 to 79.

Friday Night through Saturday Night: Mostly clear. Lows 45 to 55. Highs 70 to 80.

Sunday through Monday: Clear. Highs 79 to 89. Lows 47 to 57.
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.