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 05 2021 at 8:30 AM PDTNext Issuance: May 06 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
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
2015*
5,766
39.31
Feb 9, 2015
 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)
Tonight: Clear. Lows 51 to 58. South winds 10 to 15 mph with gusts to around 25 mph.

Thursday: Sunny. Highs 80 to 88. Southwest winds 10 to 15 mph with gusts to around 25 mph.

Thursday Night: Clear. Lows 47 to 53. South winds 10 to 20 mph.

Friday: Sunny. Highs 79 to 84. South winds around 10 mph shifting to the northwest in the afternoon.

Friday Night: Clear. Lows 51 to 59. Northwest winds 10 to 15 mph. Gusts up to 30 mph after midnight.

Saturday: Sunny, breezy. Highs 85 to 91.

Saturday Night: Clear. Lows 55 to 65.

Sunday through Tuesday: Clear. Highs 85 to 95. Lows 55 to 65.

Tuesday Night and Wednesday: Clear. Lows 51 to 59. Highs 86 to 95.
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.