Minor Flood
7212 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: GRLW4). 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.
Action Stage
7210 ft
7-Day Water Level Chart
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About This Gauge
NWS LID
GRLW4
River
Reservoirs
County
Teton, WY
Coordinates
44.1310°N, 110.8161°W
Get Flood Alerts for Reservoirs
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 Reservoirs at Grassy Lake Reservoir?
The Reservoirs at Grassy Lake Reservoir 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 Reservoirs at Grassy Lake Reservoir?
The NWS-defined flood stage for Reservoirs at Grassy Lake Reservoir is 7212 feet. Action stage begins at 7210 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when Reservoirs rises?
Download StormCast free on Google Play, go to River Gauges, and add Reservoirs at Grassy Lake Reservoir 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 Reservoirs at Grassy Lake Reservoir gauge located?
The gauge is located in Teton County, Wyoming at coordinates 44.1310°N, 110.8161°W. Data is provided by the U.S. Geological Survey and the National Weather Service.