Major Flood
18 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: ALMW3). 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
17 ft
Minor Flood
16 ft
Action Stage
10 ft
What Floods at Each Level
20 ft
Water reaches the top of the protective earthen dike.
19.8 ft
The water reaches the flood of record set in 1965.
16.5 ft
Agriculture and recreational land is flooded.
16 ft
Lock gates and walls at Dam 4 go underwater.
15.5 ft
Lock and Dam 4 is closed to navigation.
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 |
|---|---|---|
| Apr 18, 1965 | 19.78 ft | 269,000 cfs |
| Apr 16, 2001 | 18.15 ft | — |
| Apr 17, 1969 | 17.53 ft | — |
About This Gauge
NWS LID
ALMW3
River
Mississippi River
County
Buffalo, WI
Coordinates
44.3240°N, 91.9185°W
Get Flood Alerts for Mississippi 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 Mississippi River below Lock and Dam 4 - Alma?
The Mississippi River below Lock and Dam 4 - Alma 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 Mississippi River below Lock and Dam 4 - Alma?
The NWS-defined flood stage for Mississippi River below Lock and Dam 4 - Alma is 16 feet. Action stage begins at 10 feet. Moderate flooding starts at 17 feet, and major flooding at 18 feet.
How do I get alerts when Mississippi River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mississippi River below Lock and Dam 4 - Alma 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 Mississippi River below Lock and Dam 4 - Alma gauge located?
The gauge is located in Buffalo County, Wisconsin at coordinates 44.3240°N, 91.9185°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mississippi River
On This River
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Source & Notes
Data provided by: Observations courtesy of U.S. Army Corps of Engineers
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.