CNRFC - Hydrology - Observed River/Reservoir Conditions

SACRAMENTO RIVER - COLUSA BRIDGE (CLUC1)

Latitude: 39.21º N	Longitude: 122.00º W	Elevation: 70 Feet
Location: Colusa County in California		River Group: Upper Sacramento

Monitor Stage: 63.0 Feet

Flood Stage: 70.0 Feet

Danger Stage: 71.0 Feet

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View USGS Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2023*	48,000	67.26	Jan 16, 2023
2022*	29,900	59.51	Oct 26, 2021
2021*	11,500	46.82	Jan 30, 2021
2020*	20,200	53.55	Jan 27, 2020
2019*	51,100	68.33	Mar 1, 2019
Historical High Stage/Flow Events (Period of Record - Oct 1940 to Present) - Ranked by Flow
1983*	51,800	68.50	Mar 04, 1983
2019*	51,100	68.33	Mar 1, 2019
2017*	50,900	68.25	Feb 20, 2017
1998*	50,300	68.02	Feb 05, 1998
* Discharge affected by regulation or diversion

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ016)

Today: Sunny. Not as warm. Highs 82 to 88. Southeast winds up to 10 mph with gusts to around 20 mph.

Tonight: Clear. Lows 53 to 59. Southeast winds up to 10 mph.

Sunday: Mostly sunny. Highs 86 to 92. Southeast winds up to 10 mph.

Sunday Night: Clear. Lows 54 to 62. Southeast winds up to 10 mph.

Monday: Sunny. Highs around 89. Southeast winds up to 10 mph.

Monday Night: Clear. Lows 57 to 63.

Tuesday: Sunny. Highs around 90.

Tuesday Night through Thursday Night: Clear. Lows 59 to 69. Highs 90 to 100.

Friday: Mostly sunny. Highs 94 to 100.

Impacts - E19 Information
73.0 Feet	Stages above 73.0 feet result in major flooding of the area outside the levees. Top of levee.
67.2 Feet	Water moves into the parking lot and outdoor patio of Colusa Landing RV Park along east bank of river.
65.0 Feet	Water moves into the parking lot of Loves Landing trailer park along east bank of river inside levee.
63.0 Feet	Monitor Stage.

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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