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		Bulletin Group: San Joaquin		River Group: North San Joaquin

Monitor Stage: 16.0 Feet

Flood Stage: 22.0 Feet

Danger Stage: 23.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Army Corps of Engineers. View USACE 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

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.

Official 7 Day National Weather Service Forecast (CAZ019)

Today: Sunny. Highs 91 to 98. Northwest winds up to 10 mph with gusts to around 20 mph.

Tonight: Clear, cooler. Lows 57 to 67. Northwest winds up to 10 mph. Gusts up to 20 mph in the evening.

Wednesday: Sunny. Highs 85 to 91. Northwest winds up to 10 mph.

Wednesday Night: Mostly clear in the evening then becoming mostly cloudy. Lows 57 to 67. Northwest winds up to 10 mph.

Thursday: Mostly cloudy. Highs 82 to 88. Light winds.

Thursday Night: Mostly cloudy. Lows 54 to 64.

Friday: Mostly sunny. Highs 80 to 86.

Friday Night: Partly cloudy. Lows 54 to 62.

Saturday: Partly cloudy with a slight chance of rain showers. Highs 76 to 82.

Saturday Night and Sunday: Mostly clear. Lows 54 to 62. Highs 76 to 82.

Sunday Night and Columbus Day: Clear. Lows 54 to 62. Highs 76 to 83.

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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