Major Flood
661 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
659 ft
Minor Flood
655 ft
Action Stage
650 ft
What Floods at Each Level
664 ft
Water reaches the top of the protective earthen levee.
663.35 ft
Water levels reach the flood of record.
663 ft
Lock walls go underwater.
660 ft
Lock and dam 5A closes to navigation.
651 ft
Water begins to impact campsites along river upstream at Merrick State Park.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 18, 1965 | 663.35 ft | — |
| Apr 16, 2001 | 661.95 ft | — |
| Apr 10, 1997 | 661.6 ft | — |
About This Gauge
USGS Site
NWS LID
WIDM5
River
Mississippi River
County
Winona, MN
Coordinates
44.0865°N, 91.6685°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 5a - Winona?
The Mississippi River below Lock and Dam 5a - Winona gauge is maintained by USGS (site 05378490) 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 5a - Winona?
The NWS-defined flood stage for Mississippi River below Lock and Dam 5a - Winona is 655 feet. Action stage begins at 650 feet. Moderate flooding starts at 659 feet, and major flooding at 661 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 5a - Winona 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 5a - Winona gauge located?
The gauge is located in Winona County, Minnesota at coordinates 44.0865°N, 91.6685°W. USGS site number: 05378490. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mississippi River
On This River
Upstream: Mississippi River below Lock and Dam 5 - Minnesota City
Downstream: Mississippi River at Winona - Pool 6
More Resources
Source & Notes
Data provided by: Observations courtesy of U.S. Army Corps of Engineers, Observations courtesy of U.S. Geological Survey
- 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.