Severe thunderstorms are spanning from Oklahoma to Wisconsin Friday, bringing dangerous and quickly-changing weather conditions to a population of more than 15 million.
The storms will threaten damaging wind gusts between 40 and 60 mph, large hail and tornadoes at times.
Rochester, Minn.; Kansas City, Mo.; Wichita, Kan.; Omaha, Neb., Oklahoma City; Des Moines, Iowa; and Madison, Wis. are all in the line of fire through the afternoon and nighttime hours Friday.
The prime time for the development of tornadoes will be into Friday night, according to AccuWeather.com Severe Weather Expert Henry Margusity.
Those in the area should be on alert throughout the night, and be prepared for downed trees and power lines.
The severe weather will continue eastward into Saturday from eastern Wisconsin and the western Lower Peninsula of Michigan to northwestern Indiana, Illinois, southeastern Missouri and Arkansas.
For the full story, read 'Powerhouse Storms, Tornadoes a Threat Wisconsin to Oklahoma.'
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Large 2 mile wide tornado approaching Wayne Nebraska pic by simon brewer pic.twitter.com/BiBmNMWLN3— Ryan Cartee (@SkytrackerMedia) October 4, 2013