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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office La Crosse, WI North Central River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Mississippi River at Genoa Tailwater (ft)Flow (kcfs)Observed: 627.11 ft at 12:00AM May 20, 2013Observed: 627.13 ft at 4:00AM May 20, 2013Observed: 627.15 ft at 6:00AM May 20, 2013Observed: 627.15 ft at 8:00AM May 20, 2013Observed: 627.3 ft at 12:00PM May 20, 2013Observed: 627.52 ft at 4:00PM May 20, 2013Observed: 627.6 ft at 8:00PM May 20, 2013Observed: 627.65 ft at 12:00AM May 21, 2013Observed: 627.79 ft at 4:00AM May 21, 2013Observed: 627.88 ft at 6:00AM May 21, 2013Observed: 627.88 ft at 8:00AM May 21, 2013Observed: 628.04 ft at 12:00PM May 21, 2013Observed: 628.05 ft at 4:00PM May 21, 2013Observed: 628.08 ft at 8:00PM May 21, 2013Observed: 628.18 ft at 12:00AM May 22, 2013Observed: 628.2 ft at 4:00AM May 22, 2013Observed: 628.24 ft at 6:00AM May 22, 2013Observed: 628.24 ft at 8:00AM May 22, 2013Observed: 628.34 ft at 12:00PM May 22, 2013Highest Observation: 628.43 ft at 4:00PM May 22, 2013Forecast: 628.5 ft 1:00AM May 23, 2013Forecast: 628.3 ft 7:00AM May 23, 2013Forecast: 628 ft 1:00PM May 23, 2013Forecast: 627.9 ft 7:00PM May 23, 2013Forecast: 627.7 ft 1:00AM May 24, 2013Forecast: 627.6 ft 7:00AM May 24, 2013Forecast: 627.6 ft 1:00PM May 24, 2013Forecast: 627.6 ft 7:00PM May 24, 2013Forecast: 627.7 ft 1:00AM May 25, 2013Forecast: 627.7 ft 7:00AM May 25, 2013Forecast: 627.7 ft 1:00PM May 25, 2013Forecast: 627.8 ft 7:00PM May 25, 2013Forecast: 628 ft 1:00AM May 26, 2013Forecast: 628.1 ft 7:00AM May 26, 2013Forecast: 628.3 ft 1:00PM May 26, 2013Forecast: 628.4 ft 7:00PM May 26, 2013Forecast: 628.6 ft 1:00AM May 27, 2013Forecast: 628.7 ft 7:00AM May 27, 2013Forecast: 628.9 ft 1:00PM May 27, 2013Forecast: 629 ft 7:00PM May 27, 2013Forecast: 629.2 ft 1:00AM May 28, 2013Forecast: 629.3 ft 7:00AM May 28, 2013Forecast: 629.5 ft 1:00PM May 28, 2013Forecast: 629.6 ft 7:00PM May 28, 2013Forecast: 629.6 ft 1:00AM May 29, 2013Highest Forecast: 629.7 ft 7:00AM May 29, 2013Highest Forecast: 629.7 ft 1:00PM May 29, 2013Highest Forecast: 629.7 ft 7:00PM May 29, 2013GENW3(plotting HTIRZ) Graph Created (10:00PM May 22, 2013)ObservedForecast (issued 9:11PM May 22)Latest observed value: 628.43 ft at 4:00 PM CDT 22-May-2013. Flood Stage is 631 ft
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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 Genoa are issued routinely during the warm season, and as needed at other times of the year.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Lansing
Flood Categories (in feet)
Major Flood Stage:636
Moderate Flood Stage:634
Flood Stage:631
Action Stage:629

Historical Crests
(1) 638.40 ft on 04/22/1965
(2) 636.45 ft on 04/12/1997
(3) 636.21 ft on 04/18/2001
(4) 635.24 ft on 04/20/1969
(5) 634.52 ft on 04/20/1952
Show More Historical Crests

Low Water Records
(1) 615.30 ft on 08/18/1936
(2) 616.09 ft on 10/09/1937
(3) 617.39 ft on 01/21/1938
Show More Low Water Records
Legend
Gauge Location
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
640 Water begins to go over the protective earthen dikes.
639 Water begins to flow over the lock walls at Dam 8.
638.4 Water levels reach the flood of record.
635.9 Lock and dam 8 is closed to navigation.
Photos
(1) Upstream View, May 3, 2005
(2) Downstream View, May 3, 2005
About This Location Collapse

Latitude: 43.569444° N, Longitude: 91.229722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 616.8 ft 631 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 616.8)		 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 616.8 ft 631 ft U.S. Army Corps of Engineers utilizes the 1912 Datum

Other Data Sources:
Additional Information Collapse
  • How low could the river get?
  • Link to text page with Hourly River Stage Level and Water Temperatures
    • 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
    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: 13-Mar-2013 6:27 PM     		Disclaimer
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