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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Mississippi River at McGregor are issued routinely during the navigation season, and as needed at other times of the year.
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Upstream Gauge - below Lock and Dam 9 - Lynxville Upstream Gauge Downstream Gauge Downstream Gauge - below Lock and Dam 10 - Guttenberg
Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 22
Moderate Flood Stage: 19
Flood Stage: 16
Action Stage: 13
Low Stage (in feet): -9999

Historic Crests
(1) 25.38 ft on 04/24/1965
(2) 23.75 ft on 04/20/2001
(3) 22.91 ft on 04/28/2023 (P)
(4) 21.98 ft on 06/29/1993
(5) 21.75 ft on 04/26/2019
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(P): Preliminary values subject to further review.

Recent Crests
(1) 22.91 ft on 04/28/2023 (P)
(2) 16.77 ft on 10/12/2019 (P)
(3) 19.09 ft on 06/02/2019
(4) 21.75 ft on 04/26/2019
(5) 16.87 ft on 09/29/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4.28 ft on 12/08/1939
(2) 4.81 ft on 01/17/1944
(3) 5.00 ft on 01/07/1938
Show More Low Water Records
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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
27.9 The water overtops the levee.
25.4 The water reaches the flood of record set in 1965.
25 Major flooding occurs in McGregor.
23.5 The road near the casino in Marquette is closed.
22 Water covers the north end of Main Street.
21.5 Railroad tracks near the casino in Marquette are closed.
19.6 The road to the Prairie du Chien waste water treatment facility is flooded.
19 Flooding of some residential areas begin.
18 Pumping operations begin at the Prairie du Chien waste water treatment facility.
17 Minor lowland flooding begins, and access to parks near the river in Prairie du Chien is affected.
16.5 Water may begin to go over the road covering part of Highway C near Highway 18.
16 The Washington Street Bridge to Saint Feriole Island begins to flood and is closed. Pumping operations are underway.
(1) Upstream view at McGregor, October 21st, 2014, Stage = 8.90 ft
(2) Downstream view at McGregor, October 21st, 2014, Stage = 8.90 ft

Other Real-time and/or Archive Data Sources:

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
  • 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.
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