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: Dec 15 2017 at 1:00 PM PSTNext Issuance: Dec 16 2017 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
2016*
6,626
40.20
Mar 14, 2016
2015*
5,766
39.31
Feb 9, 2015
2014*
2,370
43.05
Feb 10, 2014
2013*
4,332
37.23
Dec 3, 2012
2012*
7,715
41.07
Feb 27, 2007
 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 in the evening then becoming partly cloudy. Lows 38 to 46. Light winds becoming northwest around 10 mph with gusts to around 40 mph after midnight.

Saturday: Sunny, windy. Highs 57 to 63. North winds 15 to 30 mph with gusts to around 45 mph.

Saturday Night: Clear, breezy. Lows 34 to 44. North winds 10 to 25 mph with gusts to around 40 mph.

Sunday: Sunny. Highs 59 to 65. North winds 10 to 20 mph with gusts to around 35 mph.

Sunday Night: Clear. Lows 32 to 42. North winds around 10 mph with gusts to around 20 mph in the evening becoming light.

Monday: Mostly sunny. Highs around 61.

Monday Night: Mostly clear. Lows 34 to 42.

Tuesday: Mostly sunny. Highs around 61.

Tuesday Night and Wednesday: Mostly cloudy with a slight chance of rain. Lows 39 to 45. Highs around 58.

Wednesday Night through Friday: Mostly clear. Lows 32 to 42. Highs around 59.
Impacts - E19 Information
39.0 FeetThe Cosumnes River overflow channel begins to flow.
40.0 FeetWater exits upstream and downstream of Highway 99. Dillard Road is flooded from Highway 99 to Riley Road. Twin Cities Road is flooded from Hardesty Lane to Christensen Road.
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.