Major Flood
1314 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: GRFW3). 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
1312 ft
Minor Flood
1308 ft
Action Stage
1306 ft
What Floods at Each Level
1314 ft
Several feet of water may be surrounding homes and cottages along the river, which includes areas near Gibson Drive, Mathers Road and River Road. Low-lying areas along Highway 107 will also be impacted.
1312 ft
Up to a foot of water may be surrounding homes and cottages near Gibson Drive, Mathews Road and River Road. Some low-lying areas of Highway 107 may be impacted.
1308 ft
Water may approach a few structures by Newwood River near Gibson Drive and Mathews Road.
1305 ft
Lowland flooding is occurring.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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About This Gauge
NWS LID
GRFW3
River
Wisconsin River
County
Lincoln, WI
Coordinates
45.3131°N, 89.7839°W
Get Flood Alerts for Wisconsin 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 Wisconsin River below Grandfather Dam?
The Wisconsin River below Grandfather 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 Wisconsin River below Grandfather Dam?
The NWS-defined flood stage for Wisconsin River below Grandfather Dam is 1308 feet. Action stage begins at 1306 feet. Moderate flooding starts at 1312 feet, and major flooding at 1314 feet.
How do I get alerts when Wisconsin River rises?
Download StormCast free on Google Play, go to River Gauges, and add Wisconsin River below Grandfather 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 Wisconsin River below Grandfather Dam gauge located?
The gauge is located in Lincoln County, Wisconsin at coordinates 45.3131°N, 89.7839°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Wisconsin River
On This River
More Resources
Source & Notes
Data provided by: Wisconsin Public Service
- Gauge reading affected by power generation.
- Stage may be affected by ice.