Worst twister season in a a decadeThe National Weather Service issued a tornado watch about 6 p.m. for 45 of Wisconsin's 72 counties, but canceled the alert five hours later as the storms began to ease.
Slide showTwisted mess
View images of the tornado damage in northern Colorado.more photosThunderstorms dropped hailstones the size of golf balls in St. Croix County, said meteorologist Bob McMahon, but there was no tornado anywhere in the state. At least 16,000 people across Wisconsin lost power at some point.
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