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: Oct 01 2022 at 7:32 AM PDTNext Issuance: Oct 02 2022 at 9:00 AM PDT
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
2021*
3,000
32.00
Jan 29, 2021
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
 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)
Tonight: Mostly clear. Lows 53 to 59. South winds up to 10 mph with gusts to around 20 mph.

Sunday: Mostly sunny. Highs 81 to 87. Southwest winds up to 10 mph.

Sunday Night: Clear. Lows 53 to 61. Southwest winds up to 10 mph.

Monday: Sunny. Highs 84 to 90. Light winds becoming west up to 10 mph in the afternoon.

Monday Night: Clear. Lows 54 to 62. Southwest winds up to 10 mph.

Tuesday: Mostly sunny. Highs 85 to 91.

Tuesday Night: Clear. Lows 55 to 64.

Wednesday: Sunny. Highs 88 to 94.

Wednesday Night through Thursday Night: Mostly clear. Lows 56 to 66. Highs 88 to 94.

Friday through Saturday: Clear. Highs 86 to 95. Lows 56 to 66.
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.