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: May 18 2021 at 7:55 AM PDTNext Issuance: May 19 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)
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: Sunny. Highs 81 to 87. South winds around 10 mph with gusts to around 20 mph.

Tonight: Clear. Lows 44 to 52. South winds 10 to 15 mph with gusts to around 25 mph.

Wednesday: Sunny. Highs 74 to 80. Southwest winds 10 to 15 mph.

Wednesday Night: Clear. Lows 41 to 49. Southwest winds 10 to 20 mph.

Thursday: Sunny. Highs 68 to 74. Northwest winds 10 to 15 mph with gusts to around 25 mph.

Thursday Night: Mostly clear. Lows 45 to 53.

Friday: Mostly sunny. Highs 74 to 79.

Friday Night through Saturday Night: Mostly clear. Lows 47 to 57. Highs 74 to 81.

Sunday through Monday: Clear. Highs 81 to 91. Lows 49 to 58.
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.