JACKSON, Miss. (AP) – A night of unseasonably warm weather has generated torrential rains and tornadoes across the Southeast, and some states are bracing for snow and sleet as temperatures drop Wednesday.

Officials said classes are canceled after an apparent tornado ripped off part of the roof of an elementary school in Walker County, Ala., northwest of Birmingham. Dozens of homes have been damaged in Alabama and Mississippi.

Heavy rain has caused minor flooding in western Tennessee.

Sleet is possible in areas of Louisiana and the National Weather Service issued a winter weather watch for parts of Mississippi, warning that a rare snowfall accumulation was possible.

Forecasters predict 1-3 inches over central and eastern Mississippi, but some areas could see 4 inches.