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NOTE:Forecasts for the Winnebago River (Northern IA) at Mason City are issued as needed during times of high water, but are not routinely available.

Winnebago River (Northern IA)

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Winnebago River (Northern IA) Point Selection Page
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at Mason City
Flood Stage: 10 Feet
Latest Stage: 4.15
Current Warnings/Statements/Advisories:
Complete information about
the Winnebago River (Northern IA) at Mason City

available from
NWS Des Moines, IA.
Flood Categories (in feet)
Major Flood Stage:15.5
Moderate Flood Stage:14.5
Flood Stage:10
Action Stage:6

Historical Crests
(1) 18.74 ft on 06/08/2008
(2) 14.80 ft on 03/27/1961
(3) 14.67 ft on 05/22/2004
(4) 14.27 ft on 04/11/1965
(5) 13.70 ft on 04/06/1965
(6) 13.06 ft on 08/31/1962
(7) 12.59 ft on 04/01/1993
(8) 12.44 ft on 04/07/1951
(9) 12.30 ft on 05/23/2004
(10) 12.25 ft on 07/08/1969
Show More Historical Crests


Probabilistic Stage Forecast for Mason City

Stage Exceedance Forecast for Mason City


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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
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614
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Page last modified: 29-Mar-2014 4:29 AM
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