National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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COSUMNES RIVER - MICHIGAN BAR (MHBC1)
Latitude: 38.50º NLongitude: 121.04º WElevation: 168 Feet
Location: Sacramento County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Action/Monitor: 7.0 FeetMinor Flood: 12.0 FeetModerate Flood: 16.0 FeetMajor Flood: 18.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2024
10,100
9.16
Mar 2, 2024
2023
67,900
16.83
Dec 31, 2022
2022
14,000
10.11
Oct 25, 2021
2021
3,140
6.56
Jan 28, 2021
2020
7,180
8.26
Apr 6, 2020
 Historical High Stage/Flow Events (Period of Record - Oct 1907 to Present) - Ranked by Flow
1997
93,000
18.54
Jan 02, 1997
2023
67,900
16.83
Dec 31, 2022
2017
49,700
15.19
Feb 10, 2017
1986
45,100
14.76
Feb 17, 1986
1956
42,000
14.59
Dec 23, 1955
1963
39,400
14.11
Feb 01, 1963
1965
37,500
13.80
Dec 23, 1964
1982
37,000
13.70
Feb 16, 1982
Location Photographs
ESRI™ Locator Map
Flood Impacts
13.2 FeetWater floods houses in Wilton. The south bank levee near Wilton is overtopped.
12.0 FeetWater flows on to the road near Wilton.
8.0 FeetLow lying lands along the river begin to flood.
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Partly cloudy in the evening then clearing. Lows 53 to 61. South winds 10 to 15 mph with gusts to around 25 mph.

Independence Day: Sunny. Highs 81 to 89. South winds 10 to 15 mph with gusts to around 25 mph.

Friday Night: Clear. Lows 49 to 57. South winds up to 15 mph. Gusts up to 25 mph in the evening.

Saturday: Sunny. Highs 86 to 92. Southwest winds up to 10 mph.

Saturday Night: Clear. Lows 52 to 61. Southwest winds up to 10 mph with gusts to around 20 mph.

Sunday: Sunny. Highs 88 to 96.

Sunday Night: Clear. Lows 53 to 63.

Monday through Wednesday Night: Clear. Highs 88 to 98. Lows 55 to 65.

Thursday: Sunny. Highs 97 to 103.
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.