Sacramento River at Colusa Weir
California — Water Level & Flood Stage
Located in Colusa County, California on the Sacramento River. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: CLAC1). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
73.9 ft
Moderate Flood
72.9 ft
Minor Flood
70.1 ft
Action Stage
60.9 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
73.9 ft
Stages above 73.9 feet result in major flooding. Top of levee.
60.9 ft
Colusa Weir crest elevation. Overflow begins into the Sutter Bypass.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 29, 1940 | 70.6 ft | — |
| Feb 29, 1940 | 70.6 ft | — |
| Mar 3, 1983 | 68.96 ft | 81,500 cfs |
| Mar 3, 1983 | 68.96 ft | 81,500 cfs |
| Jan 3, 1997 | 68.85 ft | 71,000 cfs |
About This Gauge
NWS LID
CLAC1
River
Sacramento River
County
Colusa, CA
Coordinates
39.2369°N, 121.9947°W
Get Flood Alerts for Sacramento River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Sacramento River at Colusa Weir?
The Sacramento River at Colusa Weir gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Sacramento River at Colusa Weir?
The NWS-defined flood stage for Sacramento River at Colusa Weir is 70.1 feet. Action stage begins at 60.9 feet. Moderate flooding starts at 72.9 feet, and major flooding at 73.9 feet.
How do I get alerts when Sacramento River rises?
Download StormCast free on Google Play, go to River Gauges, and add Sacramento River at Colusa Weir to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Sacramento River at Colusa Weir gauge located?
The gauge is located in Colusa County, California at coordinates 39.2369°N, 121.9947°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations Courtesy of CA Department of Water Resources
- Crests prior to 10/1/2019 are in an old datum. Datum change to NAVD88 occurred on 10/1/2019.<a href="http://cdec.water.ca.gov/reportapp/javareports?name=datum_change_2019.pdf"> See LINK for correction value.</a>