Lake Huron at Fort Gratiot Tidal Gauge
Michigan — Water Level & Flood Stage
Located in St. Clair County, Michigan on the Lake Huron. 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: FTGM4). Live data may be limited. View on NWS AHPS →
Flood Stages
Action Stage
581.78 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
7-Day Water Level Chart
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About This Gauge
NWS LID
FTGM4
River
Lake Huron
County
St. Clair, MI
Coordinates
43.0067°N, 82.4217°W
Get Flood Alerts for Lake Huron
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 Huron at Fort Gratiot Tidal Gauge?
The Lake Huron at Fort Gratiot Tidal Gauge 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 Huron at Fort Gratiot Tidal Gauge?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Lake Huron rises?
Download StormCast free on Google Play, go to River Gauges, and add Lake Huron at Fort Gratiot Tidal Gauge 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 Lake Huron at Fort Gratiot Tidal Gauge gauge located?
The gauge is located in St. Clair County, Michigan at coordinates 43.0067°N, 82.4217°W. Data is provided by the U.S. Geological Survey and the National Weather Service.