CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

COSUMNES RIVER - MCCONNELL (MCNC1)

Latitude: 38.36º N	Longitude: 121.34º W	Elevation: 5 Feet
Location: Sacramento County in California		Bulletin Group: San Joaquin		River Group: North San Joaquin

Issuance Time:

May 31 2023 at 8:46 AM PDT

Next Issuance:

Jun 01 2023 at 9:00 AM PDT

Monitor Stage: 36.0 Feet

Flood Stage: 42.0 Feet

Please Note:

On March 9, 2023, monitor stage was updated to 36.0 ft and flood stage was updated to 42.0 ft.

Plot Type:

Observed Data Credit
	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
2022*	7,790	38.99	Dec 24, 2021
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
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
35.0 Feet	The Cosumnes River overflow channel begins to flow.
36.0 Feet	Monitor Stage - Water exits the river 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.

Official 7 Day National Weather Service Forecast (CAZ017)

Tonight: Clear. Lows 51 to 56. South winds 10 to 15 mph.

Thursday: Sunny. Highs 80 to 87. Southwest winds up to 10 mph.

Thursday Night: Clear. Lows 51 to 59. Southwest winds 10 to 15 mph.

Friday: Sunny. Highs 83 to 91. South winds up to 10 mph shifting to the west around 10 mph in the afternoon.

Friday Night: Clear. Lows 53 to 61. Southwest winds 10 to 15 mph.

Saturday: Sunny. Highs 87 to 93.

Saturday Night: Mostly clear. Lows 56 to 64.

Sunday: Mostly sunny. Highs 88 to 96.

Sunday Night through Monday Night: Partly cloudy. Lows 55 to 65. Highs 84 to 94.

Tuesday: Partly cloudy with a slight chance of rain showers. Highs 76 to 84.

Tuesday Night: Mostly cloudy with a slight chance of rain showers. Lows around 56.

Wednesday: Partly cloudy with a slight chance of rain showers. Highs 75 to 83.

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.

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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.