Gusts up to 70 miles an hour are possible over the same wide area from Mississippi to the Atlantic where another storm system earlier in the week spawned 20 reports of tornadoes.
More than a foot of snow is expected in parts of Michigan and Wisconsin, forecasters said. Severe weather, with the possibility of tornadoes, will sweep states from Mississippi to the Carolinas.
Gusty winds ripped through the Florida Panhandle, downing power lines and trees. Tornado warnings were in place for parts of Florida, Alabama and Georgia on Tuesday.