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
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.

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)
Today: Patchy frost in the morning. Sunny. Highs around 54. North winds up to 15 mph with gusts to around 30 mph.

Tonight: Clear. Lows 28 to 34. Northwest winds around 10 mph with gusts to around 20 mph in the evening becoming light.

Saturday: Mostly sunny in the morning then becoming partly cloudy. Patchy frost in the morning. Highs 53 to 59. Light winds becoming south up to 10 mph in the afternoon.

Saturday Night: Partly cloudy in the evening then clearing. Lows 30 to 38. West winds around 10 mph shifting to the north up to 10 mph after midnight.

Sunday: Mostly sunny. Highs 57 to 63. Northwest winds up to 10 mph shifting to the south around 10 mph in the afternoon.

Sunday Night: Mostly cloudy. Lows 36 to 42.

Monday: Mostly cloudy with a chance of rain showers. Highs 50 to 56.

Monday Night: Partly cloudy with a slight chance of rain showers. Lows 32 to 39.

Tuesday: Mostly sunny. Highs 56 to 62.

Tuesday Night and Wednesday: Partly cloudy. Lows 33 to 39. Highs 54 to 60.

Wednesday Night: Mostly cloudy with a chance of rain showers. Lows 37 to 43.

Thursday: Rain showers likely. Highs around 55.
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.