Major Flood
7 ft
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: CMTI2). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
6 ft
Minor Flood
5 ft
Action Stage
4 ft
What Floods at Each Level
8 ft
Numerous structures and roadways are threatened in South Deering, East Side, Hegewisch, and South Chicago community areas of Chicago, and near Burnham.
7.5 ft
I-94 threatened along the west shore of Lake Calumet. Backwater causes Indian Creek to threaten residences along Avenue O and 129th Street in the Hegewisch Community Area of Chicago.
7 ft
Backwater causes Indian Creek to threaten residences along Green Bay Avenue in the Hegewisch Community Area of Chicago. Industrial property threatened along Carondelet Avenue in the South Deering Community Area of Chicago. Doty Avenue threatened along the west shore of Lake Calumet. Backwater casues Indian Creek to threaten athletic fields along Carondelet Avenue in the South Deering Community Area of Chicago.
6.5 ft
Structures may be threatened at Calumet Harbor and the Calumet River near 95th Street and Harbor Avenue. Residences may be threatened along 127th Street and 128th Street in the Hegewisch Community Area of Chicago.
6 ft
Industrial property and parking lots threatened near Torrence Avenue and 126th Place in South Deering and Hegewisch community areas of Chicago.
5 ft
Water begins to inundate low-lying areas along Lake Michigan near Calumet Harbor. Portions of Heron Pond Park inundated. Backwater causes Indian Creek and Wolf Lake to inundate low-lying park land along Avenue O.
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 |
|---|---|---|
| Aug 10, 2020 | 6.07 ft | — |
| Apr 28, 2020 | 6.01 ft | — |
| Jun 2, 2020 | 5.97 ft | — |
About This Gauge
NWS LID
CMTI2
River
Lake Michigan
County
Cook, IL
Coordinates
41.7300°N, 87.5383°W
Get Flood Alerts for Lake Michigan
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 Lake Michigan at Calumet Harbor?
The Lake Michigan at Calumet Harbor 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 Lake Michigan at Calumet Harbor?
The NWS-defined flood stage for Lake Michigan at Calumet Harbor is 5 feet. Action stage begins at 4 feet. Moderate flooding starts at 6 feet, and major flooding at 7 feet.
How do I get alerts when Lake Michigan rises?
Download StormCast free on Google Play, go to River Gauges, and add Lake Michigan at Calumet Harbor to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Lake Michigan at Calumet Harbor gauge located?
The gauge is located in Cook County, Illinois at coordinates 41.7300°N, 87.5383°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Lake Michigan
More Resources
Source & Notes
Data provided by: NOAA/National Ocean Service