At least 30 people died as violent weather swept the country on Friday and Saturday, and the threat isn't over.

Violent tornadoes ripped through parts of the U.S., wiping out schools and toppling semitractor-trailers in several states, ...

The Storm Prediction Center designated the day as "high risk" for severe weather, especially in the Deep South.

Scientists said the storm's strength and potential for far-reaching impacts is notable, but its timing isn't unusual.

Violent tornadoes ripped through parts of the U.S., wiping out schools and toppling semitractor-trailers in several states, part of a monster storm that killed at least 26 people as more severe ...