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: Jan 18 2022 at 1:47 PM PSTNext Issuance: Jan 19 2022 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
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: Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs 57 to 63. North winds up to 10 mph shifting to the west around 10 mph in the afternoon.

Tonight: Mostly clear. Patchy fog after midnight. Lows 36 to 45. North winds up to 10 mph with gusts to around 25 mph.

Thursday: Partly cloudy in the morning then clearing. Highs around 61. Northeast winds up to 10 mph shifting to the west around 10 mph in the afternoon. Gusts up to 20 mph.

Thursday Night: Mostly clear. Lows 37 to 45. North winds up to 10 mph. Gusts up to 20 mph after midnight.

Friday: Mostly sunny. Highs around 63. North winds 10 to 20 mph with gusts to around 30 mph.

Friday Night: Mostly clear. Breezy. Lows 39 to 47.

Saturday: Mostly sunny. Highs around 62.

Saturday Night through Monday: Clear. Lows 35 to 42. Highs around 60.

Monday Night: Mostly clear. Lows 36 to 42.

Tuesday: Mostly sunny. Patchy fog. Highs around 60.
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.