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Hydrograph River at a Glance Download
Mississippi River at Winona Dam 5a Tailwater (ft)Flow (kcfs)Observed: 648.45 ft at 5:00PM May 24, 2015Observed: 648.46 ft at 6:00PM May 24, 2015Observed: 648.46 ft at 7:00PM May 24, 2015Observed: 648.47 ft at 8:00PM May 24, 2015Observed: 648.5 ft at 9:00PM May 24, 2015Observed: 648.51 ft at 10:00PM May 24, 2015Observed: 648.53 ft at 11:00PM May 24, 2015Observed: 648.54 ft at 12:00AM May 25, 2015Observed: 648.57 ft at 1:00AM May 25, 2015Observed: 648.6 ft at 2:00AM May 25, 2015Observed: 648.62 ft at 3:00AM May 25, 2015Observed: 648.63 ft at 4:00AM May 25, 2015Observed: 648.64 ft at 5:00AM May 25, 2015Observed: 648.64 ft at 6:00AM May 25, 2015Observed: 648.64 ft at 7:00AM May 25, 2015Observed: 648.65 ft at 8:00AM May 25, 2015Observed: 648.68 ft at 9:00AM May 25, 2015Observed: 648.76 ft at 10:00AM May 25, 2015Observed: 648.8 ft at 11:00AM May 25, 2015Observed: 648.82 ft at 12:00PM May 25, 2015Observed: 648.84 ft at 1:00PM May 25, 2015Observed: 648.84 ft at 2:00PM May 25, 2015Observed: 648.85 ft at 3:00PM May 25, 2015Observed: 648.83 ft at 4:00PM May 25, 2015Observed: 648.82 ft at 5:00PM May 25, 2015Observed: 648.82 ft at 6:00PM May 25, 2015Observed: 648.81 ft at 7:00PM May 25, 2015Observed: 648.81 ft at 8:00PM May 25, 2015Observed: 648.8 ft at 9:00PM May 25, 2015Observed: 648.79 ft at 10:00PM May 25, 2015Observed: 648.76 ft at 11:00PM May 25, 2015Observed: 648.75 ft at 12:00AM May 26, 2015Observed: 648.74 ft at 1:00AM May 26, 2015Observed: 648.74 ft at 2:00AM May 26, 2015Observed: 648.72 ft at 3:00AM May 26, 2015Observed: 648.72 ft at 4:00AM May 26, 2015Observed: 648.72 ft at 5:00AM May 26, 2015Observed: 648.72 ft at 6:00AM May 26, 2015Observed: 648.72 ft at 7:00AM May 26, 2015Observed: 648.72 ft at 8:00AM May 26, 2015Observed: 648.72 ft at 9:00AM May 26, 2015Observed: 648.71 ft at 10:00AM May 26, 2015Observed: 648.71 ft at 11:00AM May 26, 2015Observed: 648.72 ft at 12:00PM May 26, 2015Observed: 648.73 ft at 1:00PM May 26, 2015Observed: 648.73 ft at 2:00PM May 26, 2015Observed: 648.78 ft at 3:00PM May 26, 2015Observed: 648.82 ft at 4:00PM May 26, 2015Observed: 648.86 ft at 5:00PM May 26, 2015Observed: 648.89 ft at 6:00PM May 26, 2015Observed: 648.95 ft at 7:00PM May 26, 2015Observed: 648.98 ft at 8:00PM May 26, 2015Observed: 649.01 ft at 9:00PM May 26, 2015Observed: 648.97 ft at 10:00PM May 26, 2015Observed: 649.02 ft at 11:00PM May 26, 2015Observed: 649.03 ft at 12:00AM May 27, 2015Observed: 649.04 ft at 1:00AM May 27, 2015Observed: 649.05 ft at 2:00AM May 27, 2015Observed: 649.06 ft at 3:00AM May 27, 2015Observed: 649.07 ft at 4:00AM May 27, 2015Observed: 649.08 ft at 5:00AM May 27, 2015Observed: 649.08 ft at 6:00AM May 27, 2015Observed: 649.09 ft at 7:00AM May 27, 2015Observed: 649.09 ft at 8:00AM May 27, 2015Observed: 649.14 ft at 9:00AM May 27, 2015Highest Observation: 649.17 ft at 10:00AM May 27, 2015Highest Observation: 649.17 ft at 11:00AM May 27, 2015Highest Observation: 649.17 ft at 12:00PM May 27, 2015Observed: 649.16 ft at 1:00PM May 27, 2015Observed: 649.16 ft at 2:00PM May 27, 2015Observed: 649.16 ft at 3:00PM May 27, 2015Observed: 649.16 ft at 4:00PM May 27, 2015Forecast: 649.3 ft 7:00PM May 27, 2015Forecast: 649.3 ft 1:00AM May 28, 2015Forecast: 649.3 ft 7:00AM May 28, 2015Forecast: 649.3 ft 1:00PM May 28, 2015Forecast: 649.3 ft 7:00PM May 28, 2015Forecast: 649.3 ft 1:00AM May 29, 2015Forecast: 649.3 ft 7:00AM May 29, 2015Forecast: 649.4 ft 1:00PM May 29, 2015Forecast: 649.4 ft 7:00PM May 29, 2015Forecast: 649.5 ft 1:00AM May 30, 2015Forecast: 649.5 ft 7:00AM May 30, 2015Forecast: 649.6 ft 1:00PM May 30, 2015Forecast: 649.7 ft 7:00PM May 30, 2015Forecast: 649.8 ft 1:00AM May 31, 2015Forecast: 649.9 ft 7:00AM May 31, 2015Forecast: 649.9 ft 1:00PM May 31, 2015Forecast: 650 ft 7:00PM May 31, 2015Forecast: 650.1 ft 1:00AM Jun 01, 2015Forecast: 650.2 ft 7:00AM Jun 01, 2015Forecast: 650.2 ft 1:00PM Jun 01, 2015Forecast: 650.3 ft 7:00PM Jun 01, 2015Forecast: 650.4 ft 1:00AM Jun 02, 2015Forecast: 650.4 ft 7:00AM Jun 02, 2015Forecast: 650.4 ft 1:00PM Jun 02, 2015Highest Forecast: 650.5 ft 7:00PM Jun 02, 2015Highest Forecast: 650.5 ft 1:00AM Jun 03, 2015Highest Forecast: 650.5 ft 7:00AM Jun 03, 2015WIDM5(plotting HTIRG) Graph Created (4:46PM May 27, 2015)ObservedForecast (issued 9:40AM May 27)Latest observed value: 649.16 ft at 4:00 PM CDT 27-May-2015. Flood Stage is 655 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
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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 at Winona Dam 5a are issued routinely during the warm season, and as needed at other times of the year.

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Upstream Gauge - at Minnesota City Upstream Gauge Downstream Gauge Downstream Gauge - at Winona
Flood Categories (in feet)
Major Flood Stage: 661
Moderate Flood Stage: 659
Flood Stage: 655
Action Stage: 650
Low Stage (in feet): 0

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) 659.90 ft on 04/20/1952
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 657.00 ft on 07/02/2014
(2) 658.17 ft on 04/15/2011
(3) 655.12 ft on 09/29/2010 (P)
(4) 654.51 ft on 05/17/2003
(5) 661.95 ft on 04/17/2001
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.

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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 under water.
660 Lock and dam 5A closes to navagation.
Photos
(1) Upstream View, Aug 28, 2008
(2) Downstream View, Aug 28, 2008
About This Location Collapse

Latitude: 44.087778° N, Longitude: 91.670556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 640.4 ft 655 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 640.4)
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 Not Available Not Available 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
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    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
    National Weather Service
    La Crosse Weather Forecast Office
    N2788 County Rd FA
    La Crosse, WI 54601
    (608) 784-7294
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    Page last modified: 12-Feb-2015 9:33 PM
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