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

Action/Monitor: 16.0 Feet

Minor Flood: 22.0 Feet

Moderate Flood: 30.9 Feet

Major Flood: 31.9 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Army Corps of Engineers. View US Army Corps of Engineers Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	1,100	7.44	Mar 3, 2024
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
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

Flood Impacts
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)

Tonight: Mostly clear. Lows 45 to 51. West winds up to 15 mph with gusts to around 25 mph.

Tuesday: Partly cloudy in the morning then clearing. Highs 64 to 74. Northwest winds up to 15 mph. Gusts up to 25 mph in the afternoon.

Tuesday Night: Clear. Lows 46 to 52. Northwest winds up to 15 mph. Gusts up to 25 mph in the evening.

Wednesday: Sunny, warmer. Highs 74 to 82. Northwest winds up to 10 mph. Gusts up to 20 mph in the afternoon.

Wednesday Night: Clear. Lows 49 to 55. Northwest winds up to 15 mph.

Thursday: Sunny. Highs 79 to 87.

Thursday Night: Partly cloudy. Lows 53 to 59.

Friday: Partly cloudy. Highs 79 to 89.

Friday Night through Sunday: Mostly clear. Lows 48 to 58. Highs 76 to 86.

Sunday Night and Monday: Clear. Lows 50 to 58. Highs 77 to 87.

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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