CNRFC - Hydrology - Observed River/Reservoir Conditions

MORMON SLOUGH - BELLOTA (MSGC1)

Latitude: 38.05º N	Longitude: 121.01º W	Elevation: 130 Feet
Location: San Joaquin County in California		River Group: San Joaquin

Monitor Stage: 16.0 Feet

Flood Stage: 22.0 Feet

Danger Stage: 23.0 Feet

Observed Data Credit
	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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ019)

Tonight: Clear, cooler. Lows 54 to 62. West winds up to 15 mph. Gusts up to 30 mph in the evening.

Saturday: Sunny. Highs 79 to 87. Northwest winds up to 10 mph with gusts to around 20 mph.

Saturday Night: Clear. Lows 54 to 60. Northwest winds up to 15 mph.

Sunday: Sunny. Highs 83 to 90. West winds up to 10 mph.

Sunday Night: Clear. Lows 55 to 63. Northwest winds up to 10 mph.

Monday: Sunny. Highs 84 to 92.

Monday Night: Clear. Lows 57 to 65.

Tuesday through Thursday: Clear. Highs 88 to 98. Lows 58 to 68.

Thursday Night and Friday: Mostly clear. Lows 61 to 71. Highs 91 to 99.

Impacts - E19 Information
31.9 Feet	Top of Levee right bank levee. Water will overflow toward Bellota and Highway 26.
23.0 Feet	Danger Stage
22.0 Feet	Flood Stage
16.0 Feet	Monitor Stage - Bike trail within lower Calaveras River channel flooded.
14.2 Feet	UOP research within the Calaveras River channel is affected by water levels.
9.0 Feet	Water rises out of the pilot channel but not yet on the levee slopes.

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.

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