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 22 2015 at 7:58 AM PDTNext Issuance: May 23 2015 at 9:00 AM PDT
Monitor Stage: 40.0 FeetFlood Stage: 46.0 Feet
Verification - Historical Graphical RVF
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2013*
4,332
37.23
Dec 3, 2012
2012*
7,715
41.07
Feb 27, 2007
2011*
19,014
44.80
Mar 17, 2011
2010*
5,224
38.62
Feb 27, 2010
2009*
12,156
43.05
Mar 04, 2009
 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: Mostly cloudy with a slight chance of rain showers in the evening and then partly cloudy after midnight. Lows around 52. South winds 10 to 15 mph. Gusts up to 25 mph in the evening.

Saturday: Partly cloudy in the morning and then partly cloudy with a slight chance of rain showers in the afternoon. Highs 75 to 83. Southwest winds up to 10 mph with gusts to around 20 mph.

Saturday Night: Mostly clear. Lows 49 to 55. South winds up to 15 mph with gusts to around 25 mph.

Sunday: Mostly sunny. Highs 79 to 87. Southwest winds up to 15 mph.

Sunday Night: Mostly clear. Lows 50 to 56. South winds 10 to 15 mph. Gusts up to 25 mph in the evening.

Memorial Day: Mostly sunny. Highs 75 to 84.

Monday Night: Mostly clear. Lows 50 to 56.

Tuesday through Friday: Mostly clear. Highs 78 to 88. Lows 49 to 59.
Impacts - E19 Information
43.0 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.

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.