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 07 2021 at 7:49 AM PSTNext Issuance: Dec 07 2021 at 3:00 PM 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
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) - Ranked by Flow
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: Mostly cloudy in the morning then clearing. Patchy fog in the morning. Not as cool. Highs 57 to 63. North winds up to 10 mph.

Tonight: Mostly clear. Patchy fog after midnight. Lows around 44. Light winds.

Wednesday: Patchy fog in the morning. Mostly cloudy. Highs 53 to 59. South winds up to 10 mph.

Wednesday Night: Cloudy. A slight chance of rain showers in the evening, then a chance of rain showers after midnight. Lows around 46. South winds up to 10 mph.

Thursday: Mostly cloudy with a chance of rain showers in the morning, then partly cloudy with a slight chance of rain showers in the afternoon. Highs 50 to 56. Northwest winds up to 15 mph. Gusts up to 25 mph in the afternoon.

Thursday Night: Mostly clear. Colder. Lows 32 to 38.

Friday: Mostly sunny. Areas of frost. Highs around 52.

Friday Night: Mostly clear. Areas of frost. Lows 31 to 37.

Saturday: Partly cloudy. Areas of frost. Highs around 52.

Saturday Night through Sunday Night: Mostly cloudy with a chance of rain showers. Lows 37 to 43. Highs around 50.

Monday: Rain showers likely. Highs around 52.
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.