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Hydrograph River at a Glance Download
Mississippi River below Lock and Dam 5a - Winona Tailwater (ft)Flow (kcfs)Observed: 650.81 ft at 1:30PM May 11, 2024Observed: 650.81 ft at 1:45PM May 11, 2024Observed: 650.82 ft at 2:00PM May 11, 2024Observed: 650.81 ft at 2:15PM May 11, 2024Observed: 650.81 ft at 2:30PM May 11, 2024Observed: 650.81 ft at 2:45PM May 11, 2024Observed: 650.81 ft at 3:00PM May 11, 2024Observed: 650.81 ft at 3:15PM May 11, 2024Observed: 650.81 ft at 3:30PM May 11, 2024Observed: 650.82 ft at 3:45PM May 11, 2024Observed: 650.81 ft at 4:00PM May 11, 2024Observed: 650.81 ft at 4:15PM May 11, 2024Observed: 650.81 ft at 4:30PM May 11, 2024Observed: 650.81 ft at 4:45PM May 11, 2024Observed: 650.82 ft at 5:00PM May 11, 2024Observed: 650.81 ft at 5:15PM May 11, 2024Observed: 650.81 ft at 5:30PM May 11, 2024Observed: 650.82 ft at 5:45PM May 11, 2024Observed: 650.82 ft at 6:00PM May 11, 2024Observed: 650.82 ft at 6:15PM May 11, 2024Observed: 650.82 ft at 6:30PM May 11, 2024Observed: 650.82 ft at 6:45PM May 11, 2024Observed: 650.83 ft at 7:00PM May 11, 2024Observed: 650.83 ft at 7:15PM May 11, 2024Observed: 650.83 ft at 7:30PM May 11, 2024Observed: 650.83 ft at 7:45PM May 11, 2024Observed: 650.83 ft at 8:00PM May 11, 2024Observed: 650.82 ft at 8:15PM May 11, 2024Observed: 650.84 ft at 8:30PM May 11, 2024Observed: 650.83 ft at 8:45PM May 11, 2024Observed: 650.83 ft at 9:00PM May 11, 2024Observed: 650.84 ft at 9:15PM May 11, 2024Observed: 650.83 ft at 9:30PM May 11, 2024Observed: 650.84 ft at 9:45PM May 11, 2024Observed: 650.84 ft at 10:00PM May 11, 2024Observed: 650.82 ft at 10:15PM May 11, 2024Observed: 650.83 ft at 10:30PM May 11, 2024Observed: 650.83 ft at 10:45PM May 11, 2024Observed: 650.83 ft at 11:00PM May 11, 2024Observed: 650.83 ft at 11:15PM May 11, 2024Observed: 650.84 ft at 11:30PM May 11, 2024Observed: 650.83 ft at 11:45PM May 11, 2024Observed: 650.84 ft at 12:00AM May 12, 2024Observed: 650.83 ft at 12:15AM May 12, 2024Observed: 650.84 ft at 12:30AM May 12, 2024Observed: 650.84 ft at 12:45AM May 12, 2024Observed: 650.83 ft at 1:00AM May 12, 2024Observed: 650.83 ft at 1:15AM May 12, 2024Observed: 650.83 ft at 1:30AM May 12, 2024Observed: 650.84 ft at 1:45AM May 12, 2024Observed: 650.84 ft at 2:00AM May 12, 2024Observed: 650.83 ft at 2:15AM May 12, 2024Observed: 650.83 ft at 2:30AM May 12, 2024Observed: 650.83 ft at 2:45AM May 12, 2024Observed: 650.84 ft at 3:00AM May 12, 2024Observed: 650.84 ft at 3:15AM May 12, 2024Observed: 650.84 ft at 3:30AM May 12, 2024Observed: 650.85 ft at 3:45AM May 12, 2024Highest Observation: 650.87 ft at 4:00AM May 12, 2024Observed: 650.86 ft at 4:15AM May 12, 2024Highest Observation: 650.87 ft at 4:30AM May 12, 2024Observed: 650.84 ft at 4:45AM May 12, 2024Observed: 650.8 ft at 5:00AM May 12, 2024Observed: 650.86 ft at 5:15AM May 12, 2024Observed: 650.84 ft at 5:30AM May 12, 2024Observed: 650.84 ft at 5:45AM May 12, 2024Observed: 650.82 ft at 6:00AM May 12, 2024Observed: 650.84 ft at 6:15AM May 12, 2024Observed: 650.83 ft at 6:30AM May 12, 2024Observed: 650.83 ft at 6:45AM May 12, 2024Observed: 650.83 ft at 7:00AM May 12, 2024Observed: 650.82 ft at 7:15AM May 12, 2024Observed: 650.83 ft at 7:30AM May 12, 2024Observed: 650.82 ft at 7:45AM May 12, 2024Observed: 650.83 ft at 8:00AM May 12, 2024Observed: 650.83 ft at 8:15AM May 12, 2024Observed: 650.83 ft at 8:30AM May 12, 2024Observed: 650.82 ft at 8:45AM May 12, 2024Observed: 650.83 ft at 9:00AM May 12, 2024Observed: 650.82 ft at 9:15AM May 12, 2024Observed: 650.83 ft at 9:30AM May 12, 2024Observed: 650.83 ft at 9:45AM May 12, 2024Observed: 650.83 ft at 10:00AM May 12, 2024Observed: 650.83 ft at 10:15AM May 12, 2024Observed: 650.83 ft at 10:30AM May 12, 2024Observed: 650.82 ft at 10:45AM May 12, 2024Observed: 650.84 ft at 11:00AM May 12, 2024Observed: 650.83 ft at 11:15AM May 12, 2024Observed: 650.84 ft at 11:30AM May 12, 2024Observed: 650.84 ft at 11:45AM May 12, 2024Observed: 650.83 ft at 12:00PM May 12, 2024Observed: 650.84 ft at 12:15PM May 12, 2024Observed: 650.83 ft at 12:30PM May 12, 2024Observed: 650.83 ft at 12:45PM May 12, 2024Observed: 650.83 ft at 1:00PM May 12, 2024Observed: 650.83 ft at 1:15PM May 12, 2024Observed: 650.83 ft at 1:30PM May 12, 2024Observed: 650.83 ft at 1:45PM May 12, 2024Observed: 650.82 ft at 2:00PM May 12, 2024Observed: 650.82 ft at 2:15PM May 12, 2024Observed: 650.83 ft at 2:30PM May 12, 2024Observed: 650.83 ft at 2:45PM May 12, 2024Observed: 650.84 ft at 3:00PM May 12, 2024Observed: 650.83 ft at 3:15PM May 12, 2024Observed: 650.83 ft at 3:30PM May 12, 2024Observed: 650.82 ft at 3:45PM May 12, 2024Observed: 650.82 ft at 4:00PM May 12, 2024Observed: 650.84 ft at 4:15PM May 12, 2024Observed: 650.83 ft at 4:30PM May 12, 2024Observed: 650.83 ft at 4:45PM May 12, 2024Observed: 650.83 ft at 5:00PM May 12, 2024Observed: 650.83 ft at 5:15PM May 12, 2024Observed: 650.83 ft at 5:30PM May 12, 2024Observed: 650.83 ft at 5:45PM May 12, 2024Observed: 650.83 ft at 6:00PM May 12, 2024Observed: 650.84 ft at 6:15PM May 12, 2024Observed: 650.83 ft at 6:30PM May 12, 2024Observed: 650.83 ft at 6:45PM May 12, 2024Observed: 650.83 ft at 7:00PM May 12, 2024Observed: 650.84 ft at 7:15PM May 12, 2024Observed: 650.83 ft at 7:30PM May 12, 2024Observed: 650.83 ft at 7:45PM May 12, 2024Observed: 650.83 ft at 8:00PM May 12, 2024Observed: 650.84 ft at 8:15PM May 12, 2024Observed: 650.83 ft at 8:30PM May 12, 2024Observed: 650.83 ft at 8:45PM May 12, 2024Observed: 650.82 ft at 9:00PM May 12, 2024Observed: 650.84 ft at 9:15PM May 12, 2024Observed: 650.83 ft at 9:30PM May 12, 2024Observed: 650.82 ft at 9:45PM May 12, 2024Observed: 650.83 ft at 10:00PM May 12, 2024Observed: 650.82 ft at 10:15PM May 12, 2024Observed: 650.82 ft at 10:30PM May 12, 2024Observed: 650.82 ft at 10:45PM May 12, 2024Observed: 650.83 ft at 11:00PM May 12, 2024Observed: 650.82 ft at 11:15PM May 12, 2024Observed: 650.83 ft at 11:30PM May 12, 2024Observed: 650.83 ft at 11:45PM May 12, 2024Observed: 650.82 ft at 12:00AM May 13, 2024Observed: 650.83 ft at 12:15AM May 13, 2024Observed: 650.82 ft at 12:30AM May 13, 2024Observed: 650.83 ft at 12:45AM May 13, 2024Observed: 650.83 ft at 1:00AM May 13, 2024Observed: 650.82 ft at 1:15AM May 13, 2024Observed: 650.81 ft at 1:30AM May 13, 2024Observed: 650.83 ft at 1:45AM May 13, 2024Observed: 650.82 ft at 2:00AM May 13, 2024Observed: 650.82 ft at 2:15AM May 13, 2024Observed: 650.83 ft at 2:30AM May 13, 2024Observed: 650.82 ft at 2:45AM May 13, 2024Observed: 650.81 ft at 3:00AM May 13, 2024Observed: 650.82 ft at 3:15AM May 13, 2024Observed: 650.82 ft at 3:30AM May 13, 2024Observed: 650.82 ft at 3:45AM May 13, 2024Observed: 650.81 ft at 4:00AM May 13, 2024Observed: 650.82 ft at 4:15AM May 13, 2024Observed: 650.83 ft at 4:30AM May 13, 2024Observed: 650.82 ft at 4:45AM May 13, 2024Observed: 650.83 ft at 5:00AM May 13, 2024Observed: 650.83 ft at 5:15AM May 13, 2024Observed: 650.83 ft at 5:30AM May 13, 2024Observed: 650.83 ft at 5:45AM May 13, 2024Observed: 650.82 ft at 6:00AM May 13, 2024Observed: 650.82 ft at 6:15AM May 13, 2024Observed: 650.82 ft at 6:30AM May 13, 2024Observed: 650.82 ft at 6:45AM May 13, 2024Observed: 650.83 ft at 7:00AM May 13, 2024Observed: 650.82 ft at 7:15AM May 13, 2024Observed: 650.82 ft at 7:30AM May 13, 2024Observed: 650.82 ft at 7:45AM May 13, 2024Observed: 650.82 ft at 8:00AM May 13, 2024Observed: 650.83 ft at 8:15AM May 13, 2024Observed: 650.82 ft at 8:30AM May 13, 2024Observed: 650.82 ft at 8:45AM May 13, 2024Observed: 650.83 ft at 9:00AM May 13, 2024Observed: 650.84 ft at 9:15AM May 13, 2024Observed: 650.83 ft at 9:30AM May 13, 2024Observed: 650.84 ft at 9:45AM May 13, 2024Observed: 650.85 ft at 10:00AM May 13, 2024Observed: 650.82 ft at 10:15AM May 13, 2024Observed: 650.83 ft at 10:30AM May 13, 2024Observed: 650.84 ft at 10:45AM May 13, 2024Observed: 650.77 ft at 11:00AM May 13, 2024Observed: 650.82 ft at 11:15AM May 13, 2024Observed: 650.82 ft at 11:30AM May 13, 2024Observed: 650.81 ft at 11:45AM May 13, 2024Observed: 650.81 ft at 12:00PM May 13, 2024Observed: 650.81 ft at 12:15PM May 13, 2024Observed: 650.8 ft at 12:30PM May 13, 2024Observed: 650.8 ft at 12:45PM May 13, 2024Observed: 650.8 ft at 1:00PM May 13, 2024Observed: 650.8 ft at 1:15PM May 13, 2024Observed: 650.81 ft at 1:30PM May 13, 2024Observed: 650.8 ft at 1:45PM May 13, 2024Observed: 650.8 ft at 2:00PM May 13, 2024Observed: 650.8 ft at 2:15PM May 13, 2024Observed: 650.8 ft at 2:30PM May 13, 2024Observed: 650.8 ft at 2:45PM May 13, 2024Observed: 650.81 ft at 3:00PM May 13, 2024Observed: 650.8 ft at 3:15PM May 13, 2024Observed: 650.8 ft at 3:30PM May 13, 2024Observed: 650.8 ft at 3:45PM May 13, 2024Observed: 650.81 ft at 4:00PM May 13, 2024Observed: 650.8 ft at 4:15PM May 13, 2024Observed: 650.8 ft at 4:30PM May 13, 2024Observed: 650.8 ft at 4:45PM May 13, 2024Observed: 650.8 ft at 5:00PM May 13, 2024Observed: 650.8 ft at 5:15PM May 13, 2024Observed: 650.8 ft at 5:30PM May 13, 2024Observed: 650.8 ft at 5:45PM May 13, 2024Observed: 650.8 ft at 6:00PM May 13, 2024Observed: 650.8 ft at 6:15PM May 13, 2024Observed: 650.8 ft at 6:30PM May 13, 2024Observed: 650.8 ft at 6:45PM May 13, 2024Observed: 650.79 ft at 7:00PM May 13, 2024Observed: 650.79 ft at 7:15PM May 13, 2024Observed: 650.79 ft at 7:30PM May 13, 2024Observed: 650.79 ft at 7:45PM May 13, 2024Observed: 650.79 ft at 8:00PM May 13, 2024Observed: 650.79 ft at 8:15PM May 13, 2024Observed: 650.79 ft at 8:30PM May 13, 2024Observed: 650.79 ft at 8:45PM May 13, 2024Observed: 650.8 ft at 9:00PM May 13, 2024Observed: 650.8 ft at 9:15PM May 13, 2024Observed: 650.79 ft at 9:30PM May 13, 2024Observed: 650.79 ft at 9:45PM May 13, 2024Observed: 650.79 ft at 10:00PM May 13, 2024Observed: 650.79 ft at 10:15PM May 13, 2024Observed: 650.79 ft at 10:30PM May 13, 2024Observed: 650.79 ft at 10:45PM May 13, 2024Observed: 650.79 ft at 11:00PM May 13, 2024Observed: 650.78 ft at 11:15PM May 13, 2024Observed: 650.79 ft at 11:30PM May 13, 2024Observed: 650.79 ft at 11:45PM May 13, 2024Observed: 650.79 ft at 12:00AM May 14, 2024Observed: 650.79 ft at 12:15AM May 14, 2024Observed: 650.79 ft at 12:30AM May 14, 2024Observed: 650.78 ft at 12:45AM May 14, 2024Observed: 650.78 ft at 1:00AM May 14, 2024Observed: 650.79 ft at 1:15AM May 14, 2024Observed: 650.78 ft at 1:30AM May 14, 2024Observed: 650.79 ft at 1:45AM May 14, 2024Observed: 650.78 ft at 2:00AM May 14, 2024Observed: 650.78 ft at 2:15AM May 14, 2024Observed: 650.79 ft at 2:30AM May 14, 2024Observed: 650.78 ft at 2:45AM May 14, 2024Observed: 650.78 ft at 3:00AM May 14, 2024Observed: 650.78 ft at 3:15AM May 14, 2024Observed: 650.78 ft at 3:30AM May 14, 2024Observed: 650.77 ft at 3:45AM May 14, 2024Observed: 650.77 ft at 4:00AM May 14, 2024Observed: 650.77 ft at 4:15AM May 14, 2024Observed: 650.77 ft at 4:30AM May 14, 2024Observed: 650.77 ft at 4:45AM May 14, 2024Observed: 650.77 ft at 5:00AM May 14, 2024Observed: 650.77 ft at 5:15AM May 14, 2024Observed: 650.77 ft at 5:30AM May 14, 2024Observed: 650.77 ft at 5:45AM May 14, 2024Observed: 650.77 ft at 6:00AM May 14, 2024Observed: 650.77 ft at 6:15AM May 14, 2024Observed: 650.76 ft at 6:30AM May 14, 2024Observed: 650.76 ft at 6:45AM May 14, 2024Observed: 650.76 ft at 7:00AM May 14, 2024Observed: 650.77 ft at 7:15AM May 14, 2024Observed: 650.75 ft at 7:30AM May 14, 2024Observed: 650.76 ft at 7:45AM May 14, 2024Observed: 650.76 ft at 8:00AM May 14, 2024Observed: 650.76 ft at 8:15AM May 14, 2024Observed: 650.75 ft at 8:30AM May 14, 2024Observed: 650.76 ft at 8:45AM May 14, 2024Observed: 650.79 ft at 9:00AM May 14, 2024Observed: 650.69 ft at 9:15AM May 14, 2024Observed: 650.75 ft at 9:30AM May 14, 2024Observed: 650.74 ft at 9:45AM May 14, 2024Observed: 650.74 ft at 10:00AM May 14, 2024Observed: 650.74 ft at 10:15AM May 14, 2024Observed: 650.73 ft at 10:30AM May 14, 2024Observed: 650.72 ft at 10:45AM May 14, 2024Observed: 650.71 ft at 11:00AM May 14, 2024Observed: 650.71 ft at 11:15AM May 14, 2024Observed: 650.71 ft at 11:30AM May 14, 2024Observed: 650.71 ft at 11:45AM May 14, 2024Observed: 650.71 ft at 12:00PM May 14, 2024Observed: 650.7 ft at 12:15PM May 14, 2024Highest Forecast: 650.7 ft 7:00PM May 14, 2024Highest Forecast: 650.7 ft 1:00AM May 15, 2024Highest Forecast: 650.7 ft 7:00AM May 15, 2024Forecast: 650.6 ft 1:00PM May 15, 2024Forecast: 650.6 ft 7:00PM May 15, 2024Forecast: 650.6 ft 1:00AM May 16, 2024Forecast: 650.5 ft 7:00AM May 16, 2024Forecast: 650.4 ft 1:00PM May 16, 2024Forecast: 650.4 ft 7:00PM May 16, 2024Forecast: 650.3 ft 1:00AM May 17, 2024Forecast: 650.2 ft 7:00AM May 17, 2024Forecast: 650.2 ft 1:00PM May 17, 2024Forecast: 650.1 ft 7:00PM May 17, 2024Forecast: 650.1 ft 1:00AM May 18, 2024Forecast: 650.1 ft 7:00AM May 18, 2024Forecast: 650 ft 1:00PM May 18, 2024Forecast: 650 ft 7:00PM May 18, 2024Forecast: 650 ft 1:00AM May 19, 2024Forecast: 650 ft 7:00AM May 19, 2024Forecast: 650 ft 1:00PM May 19, 2024Forecast: 650 ft 7:00PM May 19, 2024Forecast: 649.9 ft 1:00AM May 20, 2024Forecast: 649.9 ft 7:00AM May 20, 2024Forecast: 649.9 ft 1:00PM May 20, 2024Forecast: 649.8 ft 7:00PM May 20, 2024Forecast: 649.8 ft 1:00AM May 21, 2024Forecast: 649.8 ft 7:00AM May 21, 2024USACE - Building StrongWIDM5(plotting HTIRG) Graph Created (1:15PM May 14, 2024)ObservedForecast (issued 9:31AM May 14)Latest observed value: 650.7 ft at 12:15 PM CDT 14-May-2024. Flood Stage is 655 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: 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.

NOTE: Forecasts for the Mississippi River below Lock and Dam 5a - Winona are issued routinely during the navigation season, and as needed at other times of the year.

Vertical Datum is the USACE 1912 datum

Return to Area Map
Upstream Gauge - below Lock and Dam 5 - Minnesota City Upstream Gauge Downstream Gauge Downstream Gauge - at Winona - Pool 6
Flood Categories (in feet)
Major Flood Stage: 661
Moderate Flood Stage: 659
Flood Stage: 655
Action Stage: 650
Low Stage (in feet): -9999

Historic Crests
(1) 663.35 ft on 04/19/1965
(2) 661.95 ft on 04/17/2001
(3) 661.60 ft on 04/11/1997
(4) 661.37 ft on 04/19/1969
(5) 660.51 ft on 04/26/2023 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 660.51 ft on 04/26/2023 (P)
(2) 656.55 ft on 05/25/2019
(3) 658.75 ft on 04/03/2019
(4) 657.00 ft on 07/02/2014
(5) 658.17 ft on 04/15/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 639.65 ft on 08/17/1936
(2) 642.96 ft on 01/27/1944
(3) 643.95 ft on 12/13/1980
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
664 Water reaches the top of the protective earthen levee.
663.35 Water levels reach the flood of record.
663 Lock walls go underwater.
660 Lock and dam 5A closes to navigation.
651 Water begins to impact campsites along river upstream at Merrick State Park.
Photos
(1) Downstream view at Winona Dam 5A, September 11th, 2012
(2) Downstream view at Winona Dam 5A, September 11th, 2012
About This Location Collapse

Latitude: 44.086500° N, Longitude: 91.668500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 655 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 0.0 ft 655 ft U.S. Army Corps of Engineers utilizes the 1912 Datum

Current/Historical Observations:
Additional Information Collapse
  • How low could the river get?
  • Link to text page with Hourly River Stage Level and Water Temperatures
  • Link to river gage data along Navigational Mississippi River from Twin Cities to Lock and Dam 10
  • Link to Lock & Dam data and other locations in USACE’s St. Paul District
    • Resources Collapse
    Hydrologic Resources Additional Resources
    Collaborative Agencies Collapse
    The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
    NWS Information
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