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 - MCCONNELL (MCNC1)
Latitude: 38.36º NLongitude: 121.34º WElevation: 5 Feet
Location: Sacramento County in CaliforniaRiver Group: San Joaquin
Issuance Time: Nov 28 2022 at 1:51 PM PSTNext Issuance: Nov 29 2022 at 9:00 AM PST
Monitor Stage: 40.0 FeetFlood Stage: 46.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2021*
3,000
32.00
Jan 29, 2021
2020*
6,890
38.18
Apr 6, 2020
2019*
13,200
42.04
Feb 15, 2019
2018*
24,200
42.92
Mar 23, 2018
2017*
33,900
43.99
Jan 11, 2017
 Historical High Stage/Flow Events (Period of Record - Jan 1952 to Present) - Ranked by Flow
1997*
--
48.50
Jan 02, 1997
1986
--
47.10
Feb 18, 1986
2006*
36,209
47.02
Jan 01, 2006
1998*
--
46.56
Feb 04, 1998
 * Discharge affected by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Today: Areas of frost in the morning. Sunny. Highs 53 to 59. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Tonight: Mostly clear. Areas of frost after midnight. Lows 30 to 38. Light winds.

Wednesday: Widespread frost in the morning. Mostly sunny. Highs 54 to 59. South winds up to 10 mph.

Wednesday Night: Partly cloudy with a slight chance of rain in the evening, then mostly cloudy with a chance of rain after midnight. Lows 40 to 46. South winds 10 to 15 mph. Gusts up to 25 mph after midnight.

Thursday: Rain, breezy. Highs 48 to 54. South winds 15 to 25 mph.

Thursday Night: Mostly cloudy with a chance of rain. Colder. Lows 30 to 36.

Friday: Mostly sunny. Areas of frost and patchy fog. Highs 48 to 54.

Friday Night: Partly cloudy with a slight chance of rain. Lows 32 to 37.

Saturday and Saturday Night: Rain likely. Highs 48 to 54. Lows 32 to 40.

Sunday: Mostly cloudy with a chance of rain. Highs 49 to 55.

Sunday Night: Partly cloudy with a slight chance of rain showers. Patchy fog. Lows 31 to 37.

Monday: Partly cloudy. Areas of frost and patchy fog. Highs around 50.
Impacts - E19 Information
39.0 FeetThe Cosumnes River overflow channel begins to flow.
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.