Major Flood
758 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: YNHG1). 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
754 ft
Minor Flood
748 ft
Action Stage
744.2 ft
What Floods at Each Level
745 ft
HIGH WATER LEVELS HAVE CAUSE FLOODING ALONG COOPER ROAD AND RIVER ROAD IN OCONEE COUNTY AND FLOODED WALKER CREEK BOAT RAMP IN STEPHENS COUNTY.
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 |
|---|---|---|
| Dec 31, 1899 | 748.7 ft | — |
| May 29, 2018 | 746.47 ft | — |
| Dec 30, 2015 | 744.84 ft | -9,999 cfs |
About This Gauge
NWS LID
YNHG1
River
Tugalo River
County
Stephens, GA
Coordinates
34.6797°N, 83.3300°W
Get Flood Alerts for Tugalo 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 Tugalo River at YONAH DAM?
The Tugalo River at YONAH DAM 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 Tugalo River at YONAH DAM?
The NWS-defined flood stage for Tugalo River at YONAH DAM is 748 feet. Action stage begins at 744.2 feet. Moderate flooding starts at 754 feet, and major flooding at 758 feet.
How do I get alerts when Tugalo River rises?
Download StormCast free on Google Play, go to River Gauges, and add Tugalo River at YONAH DAM 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 Tugalo River at YONAH DAM gauge located?
The gauge is located in Stephens County, Georgia at coordinates 34.6797°N, 83.3300°W. Data is provided by the U.S. Geological Survey and the National Weather Service.