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: Oct 17 2021 at 11:16 AM PDTNext Issuance: Oct 18 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) - 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: Mostly cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Breezy. Lows 42 to 48. West winds 15 to 25 mph decreasing to 10 to 15 mph after midnight.

Monday: Partly cloudy in the morning then clearing. Highs 57 to 64. Southwest winds around 10 mph shifting to the northwest in the afternoon.

Monday Night: Mostly clear. Lows 36 to 46. Northwest winds around 10 mph shifting to the southeast up to 10 mph after midnight.

Tuesday: Mostly sunny. Highs 63 to 69. Southeast winds up to 15 mph.

Tuesday Night: Mostly cloudy. A slight chance of rain showers in the evening, then a chance of rain showers after midnight. Lows 47 to 55. South winds around 10 mph.

Wednesday: Mostly cloudy with rain showers likely. Highs 62 to 68.

Wednesday Night: Mostly cloudy with a chance of rain showers. Lows 48 to 58.

Thursday: Mostly cloudy with a slight chance of rain showers. Highs 69 to 75.

Thursday Night and Friday: Mostly cloudy with a chance of rain showers. Lows 52 to 60. Highs 65 to 75.

Friday Night and Saturday: Mostly cloudy with a slight chance of rain showers. Lows 45 to 53. Highs 62 to 72.

Saturday Night and Sunday: Mostly cloudy with a chance of rain showers. Lows 48 to 54. Highs 60 to 67.
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.