Officials have warned that severe rain and wind are headed to the Tennessee , Mississippi and Ohio Valleys on Sunday evening that could pose a tornado threat.
The storm already brought freezing rain that ripped down trees and power lines in the upper Great Lakes region , leaving more than 200,000 people without power Sunday in Michigan and Wisconsin .
Affected residents have been relocated to public buildings with power as electricians rush to restore power, though many will likely remain without it until Monday…