More rounds of thunderstorms, strong winds, and the possibility for large hail and isolated tornadoes are expected as May begins.

Four people have died in Pennsylvania as severe storms hammered much of the U.S. on Tuesday night -- and the severe weather threat is ongoing on Wednesday. A long-lived destructiv

Strong storms in the Pittsburgh area have killed at least four people. Meanwhile, in southern Missouri, a tornado uprooted trees, destroyed roofs and crushed buildings. And powerful storms also hit parts of Texas on Wednesday night,