"Several tornadoes will also occur with supercells. A few of these tornadoes could be strong." Accuweather meteorologists warned that more than a dozen tornadoes were possible Sunday afternoon and Sunday night,

Sunday and Wednesday could feature severe weather outbreaks across the Mississippi and Ohio valleys, while Monday could bring storms to the Deep South and East Coast.

Forecasters warn of widespread damaging winds, very large hail and tornadoes, from Texas to the East Coast starting on Sunday.