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: Jan 27 2022 at 1:30 PM PSTNext Issuance: Jan 28 2022 at 9:00 AM PST
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) - 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)
Tonight: Clear. Lows 33 to 42. North winds up to 10 mph shifting to the east after midnight.

Friday: Patchy frost in the morning. Partly cloudy. Highs 57 to 63. Northeast winds up to 10 mph.

Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows 36 to 44. North winds up to 10 mph.

Saturday: Mostly cloudy. Highs around 59. Northwest winds up to 10 mph.

Saturday Night: Mostly clear. Patchy fog after midnight. Lows 33 to 41. Northwest winds up to 10 mph.

Sunday: Mostly sunny. Patchy fog. Highs 57 to 63.

Sunday Night: Partly cloudy. Lows 37 to 43.

Monday: Mostly cloudy. Highs 56 to 61.

Monday Night: Mostly clear. Lows 36 to 42.

Tuesday through Wednesday: Clear. Highs 53 to 59. Lows 33 to 42.

Wednesday Night: Mostly clear. Lows 32 to 38.

Thursday: Mostly sunny. Areas of frost. Highs 55 to 60.
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.