NEW : Frigid precipitation stretches from Plains to Eastern Seaboard . This is a life-threatening storm . '' NEW : Most of the Lower 48 states affected by severe weather advisories . NEW : Tornado watches up in Florida Panhandle , south Georgia and Alabama . A man walks through a flooded street after Hurricane Matthew passed through Charleston, South Carolina, on Sept. 16, 2016. Section of roof blows away at Chicago 's Wrigley Field .
NEW : Frigid precipitation stretches from Plains to Eastern Seaboard . NEW : Most of the Lower 48 states affected by severe weather advisories . NEW : Tornado watches up in Florida Panhandle , south Georgia and Alabama . A man walks through a flooded street after Hurricane Matthew passed through Charleston, South Carolina, on Sept. 16, 2016. Section of roof blows away at Chicago 's Wrigley Field .