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 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
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
2018*	2,180	9.62	Nov 26, 2017
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

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

Official 7 Day National Weather Service Forecast (CAZ019)

Tonight: Mostly cloudy in the evening then becoming partly cloudy. Patchy fog and frost late in the night. Lows 32 to 42. Northwest winds up to 10 mph.

Monday: Areas of frost and patchy fog in the morning. Mostly sunny. Highs 56 to 62. Northwest winds up to 10 mph.

Monday Night: Mostly clear. Patchy fog after midnight. Lows 34 to 44. Light winds.

Tuesday: Patchy fog and frost in the morning. Mostly sunny. Highs 55 to 61. Northwest winds up to 10 mph.

Tuesday Night: Clear. Patchy fog after midnight. Lows 32 to 42. Northwest winds up to 10 mph in the evening becoming light.

Wednesday: Mostly sunny. Patchy frost. Highs 57 to 63.

Wednesday Night: Partly cloudy. Lows 35 to 45.

Thursday and Thursday Night: Mostly cloudy. Highs 58 to 64. Lows 35 to 45.

Friday: Partly cloudy. Highs 59 to 65.

Friday Night: Mostly cloudy. Lows 35 to 45.

Saturday: Mostly sunny. Highs 60 to 66.

Saturday Night: Partly cloudy with a slight chance of rain showers. Lows 37 to 47.

Sunday: Partly cloudy with a slight chance of rain showers. Highs 58 to 64.

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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