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 CaliforniaRiver Group: San Joaquin
Monitor Stage: 7.0 FeetFlood Stage: 12.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View 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
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Mostly clear. Lows 56 to 66. South winds up to 10 mph with gusts to around 20 mph.

Tuesday: Sunny. Highs 91 to 101. South winds up to 10 mph with gusts to around 20 mph.

Tuesday Night: Clear. Lows 57 to 67. Southwest winds up to 15 mph with gusts to around 25 mph.

Wednesday: Sunny. Highs 91 to 101. South winds up to 10 mph.

Wednesday Night: Clear. Lows 56 to 66. South winds up to 15 mph with gusts to around 25 mph.

Thursday: Sunny. Highs 87 to 95.

Thursday Night: Clear. Lows 53 to 61.

Independence Day through Monday: Clear. Highs 84 to 94. Lows 52 to 61.
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.
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.