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

 | 

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
Gage owner logo

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

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2025 8,240 8.61 Feb 14, 2025
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
 Historical High Stage/Flow Events (Period of Record - Oct 1907 to Present) - Ranked by Flow
1997 93,000 18.54 Jan 02, 1997
1907 71,000* 16.30 Mar 19, 1907
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
 * Estimated
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Today: Rain in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Breezy. Highs 45 to 51. South winds 15 to 25 mph with gusts to around 35 mph.

Tonight: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms in the evening, then a slight chance of rain after midnight. Lows around 34. Southwest winds 10 to 20 mph. Gusts up to 30 mph in the evening.

Wednesday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs 45 to 52. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Wednesday Night: Rain likely. Lows around 38. South winds 10 to 15 mph with gusts to around 25 mph.

Thursday: Rain. Highs 45 to 51. South winds 10 to 20 mph with gusts to around 30 mph.

Thursday Night: Partly cloudy with a chance of rain. Lows around 31.

Friday: Partly cloudy. Highs around 49.

Friday Night: Partly cloudy with a slight chance of rain. Lows around 37.

Saturday: Mostly cloudy with a slight chance of rain. Highs 50 to 55.

Saturday Night: Mostly cloudy with a chance of rain. Lows around 44.

Sunday and Sunday Night: Rain. Highs 54 to 61. Lows 44 to 49.

Monday: Rain. Highs 55 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.