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: Oct 19 2021 at 8:47 AM PDTNext Issuance: Oct 20 2021 at 9:00 AM PDT
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
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
2016*
6,626
40.20
Mar 14, 2016
 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: Partly cloudy. Highs 64 to 71. South winds up to 15 mph.

Tonight: Mostly cloudy. A chance of rain in the evening, then rain after midnight. Lows around 51. Southeast winds 10 to 15 mph with gusts to around 25 mph.

Wednesday: Rain. Highs 59 to 65. Southeast winds 10 to 15 mph. Gusts up to 25 mph in the morning.

Wednesday Night: Mostly cloudy. A chance of rain in the evening, then rain likely after midnight. Lows 51 to 57. East winds up to 10 mph.

Thursday: Rain likely. Highs 64 to 70. South winds up to 10 mph.

Thursday Night: Mostly cloudy with rain likely. Lows 53 to 59.

Friday: Rain likely. Highs 62 to 68.

Friday Night: Mostly cloudy with a slight chance of rain showers. Lows 47 to 53.

Saturday: Mostly cloudy with a slight chance of rain. Highs 59 to 65.

Saturday Night: Mostly cloudy with a chance of rain showers. Lows 49 to 55.

Sunday: Rain showers likely. Highs 58 to 64.

Sunday Night: Rain. Lows around 51.

Monday: Rain showers likely. Highs 58 to 64.
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.