StormCast — Weather & Emergency Alerts

Big Thompson River (CO) at Cedar Cove
Colorado — Water Level & Flood Stage

Located in Larimer County, Colorado on the Big Thompson River (CO). 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: BIMC2). Live data may be limited. View on NWS AHPS →

Flood Stages

Major Flood

11 ft

Moderate Flood

9 ft

Minor Flood

7.5 ft

Action Stage

6.5 ft

1,890 cfs

Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.

What Floods at Each Level

12.5 ft

This is a major, life threatening flood. There is extensive inundation of houses and severe damage to Highway 34 in Big Thompson Canyon.

11 ft

This is a major, life threatening flood with extensive flooding and damage to Highway 34 in Big Thompson Canyon.

9 ft

A number of private bridges crossing the Big Thompson River flood.

8.5 ft

Water floods several houses west of Marianna Butte. Sylvan Dale Ranch near Cedar Cove is flooded.

7.5 ft

Houses flood west of the Highway 31D Bridge off of County Road 22H.

7 ft

Water spills into the Riverview Campground.

6.5 ft

Water flows into low lying areas along the river near Cedar Cove.

Impact statements from the National Weather Service, describing what typically happens at each water level.

7-Day Water Level Chart

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View Official NWS Hydrograph →

Historic Crests

Date Stage Flow
May 31, 20146.43 ft1,890 cfs
May 31, 20146.43 ft1,890 cfs
Jun 6, 20216.25 ft1,160 cfs
Jun 6, 20216.25 ft1,160 cfs
Jun 2, 20206.18 ft1,200 cfs

About This Gauge

NWS LID

BIMC2

River

Big Thompson River (CO)

County

Larimer, CO

Coordinates

40.4149°N, 105.2510°W

Get Flood Alerts for Big Thompson River (CO)

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Frequently Asked Questions

What is the current water level of Big Thompson River (CO) at Cedar Cove?

The Big Thompson River (CO) at Cedar Cove 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 Big Thompson River (CO) at Cedar Cove?

The NWS-defined flood stage for Big Thompson River (CO) at Cedar Cove is 7.5 feet. Action stage begins at 6.5 feet. Moderate flooding starts at 9 feet, and major flooding at 11 feet.

How do I get alerts when Big Thompson River (CO) rises?

Download StormCast free on Google Play, go to River Gauges, and add Big Thompson River (CO) at Cedar Cove 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 Big Thompson River (CO) at Cedar Cove gauge located?

The gauge is located in Larimer County, Colorado at coordinates 40.4149°N, 105.2510°W. Data is provided by the U.S. Geological Survey and the National Weather Service.

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Source & Notes

Data provided by: CO Division of Water Resources