Lighting flashes over the Chicago skyline, Wednesday, June 12, 2013. An unusually 

Lighting flashes over the Chicago skyline, Wednesday, June 12, 2013. An unusually massive line of storms packing hail, lightning and tree-toppling winds was rolling through the Midwest on Wednesday and could affect more than one in five Americans from Iowa to Maryland. (AP Photo/Scott Eisen)
Associated Press
Lighting flashes over the Chicago skyline, Wednesday, June 12, 2013. An unusually massive line of storms packing hail, lightning and tree-toppling winds was rolling through the Midwest on Wednesday and could affect more than one in five Americans from Iowa to Maryland. (AP Photo/Scott Eisen)
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