A severe thunderstorm watch has been issued for parts of Wisconsin, Illinois and Iowa through 7 p.m. Central Time.
Strong to severe storms could be seen developing across portions of the Plains and upper Midwest on Sunday afternoon and evening.
People who live in those areas, especially those heading to the Minnesota State Fair, should keep an eye on the skies and download the free FOX Weather app to track any storms that develop and receive important weather alerts if one is issued.
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Severe Thunderstorm Watch in effect for Wisconsin, Illinois, Iowa

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Due to the threat of strong to severe thunderstorms Sunday afternoon and evening, forecasters have issued a Severe Storm Watch through 7 p.m. Central Time for portions of Wisconsin, Illinois and Iowa.
In Wisconsin, the cities included in the watch are Madison, Milwaukee and Kenosha. The cities of Rockford and Peru are included in Illinois.

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The threat of strong to severe storms extends across areas from southeastern Nebraska north through Minnesota and Wisconsin to the Canadian border.
However, the risk is higher in Minnesota and northwestern Wisconsin.

The great threat of hail on Sunday, August 28.
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Those same areas under the threat of severe thunderstorms should also prepare for the possibility of hail larger than 2 inches.
The threat of large hail is greatest in central Minnesota, including the cities of Bemidji, Park Rapids, Rush Lake, Brainard, Little Falls, Alexandria, St. Cloud, and Annadale.
“That area from Bemidji to Minneapolis, you have to be careful because as those hailstones form, they can be very dangerous and cause property damage,” said FOX Weather Meteorologist Amy Freeze. “But also, you don’t want to get caught out there. So if you have outdoor plans, make sure you have a backup.”

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And as with any strong to severe thunderstorm, damaging wind is also a concern.
Areas with the greatest threat of severe weather on Sunday will also be at risk of those damaging winds that will be capable of downing trees and power lines and causing damage to structures.

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There is also a chance of seeing a tornado or two, but that chance is far less than the threat of damaging wind and large hail.
Tornadoes are possible Sunday from International Falls, south through Bemidji, Minneapolis, Albert Lea and into Algona and Storm Lake in Iowa.