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Fox News Weather Center

Strong Storms to Rattle Minneapolis, Omaha Sunday

Strong thunderstorms threaten to close out the weekend across parts of the Upper Midwest, posing risks to those with outdoor plans and potentially causing damage.

Residents in the corridor from eastern Nebraska to southern Minnesota and Wisconsin will have to remain alert for the violent thunderstorms on Sunday afternoon and evening.

Cities within this zone include Minneapolis and Rochester, Minnesota; Omaha, Nebraska; Sioux City and Des Moines, Iowa; and La Crosse, Green Bay and Madison, Wisconsin.

Not every one of these cities nor communities in the Upper Midwest will face a strong thunderstorm later on Sunday as a widespread severe weather outbreak is not expected. However, it only takes one violent thunderstorm to cause damage or bodily harm.

"The stronger storms will be capable of producing wind gusts to 60 mph, large hail and heavy rain," stated AccuWeather Assistant Director of Weather Warning Services Andrew Gagnon.

The strength of the winds could damage trees and loose lawn items and cause sporadic power outages.

All motorists traveling on stretches of Interstates 29, 35, 80, 90 and 94 when the thunderstorms roll through will face blinding downpours and reduced visibility.

Regardless of the severity of the thunderstorms, residents should seek shelter as soon as thunder is heard. You are then close enough to be struck by lightning.

Stay ahead of the strong thunderstorms with AccuWeather.com MinuteCast®, tailored to your specific location.

The strong thunderstorms will erupt as a cold front slices into the warm and moist air surging into the Upper Midwest. Prior to the eruption of the thunderstorms, Sunday will feel more like a June day with temperatures approaching or eclipsing the 80-degree mark.

Thunderstorms, however, will not be limited to the Upper Midwest for the second half of the weekend.

"Thunderstorm coverage will be more isolated Sunday afternoon in the central and southern High Plains," added Gagnon. "However, brief gusty winds are still expected with the strongest storms in these areas."

Spotty thunderstorms will also dot and interrupt those with outdoor plans in the higher terrain of the Rockies and westward to the Sierra on Sunday afternoon and evening.

On Monday, the northern half of the area at risk for Sunday's stronger thunderstorms will dry out as thunderstorms rumble from the central Plains to the lower and eastern Great Lakes.

Attention will shift to the southern High Plains and Colorado for drenching and locally gusty thunderstorms to potentially trigger flash flooding on Monday and Tuesday. On Wednesday, severe thunderstorms may return to the zone from South Dakota to Kansas.