Up to 59 million from Texas to Michigan are under severe storm risk as heavy rains, flash flooding and strong tornadoes are ...

A once-in-a generation extreme weather event is beginning Wednesday with a tornado outbreak and will continue into the weekend with dangerous, life-threatening flooding.

A tornado outbreak is expected Wednesday and Wednesday night from parts of the lower Mississippi Valley into the mid-South ...

Forecasters issued some of their rarest and most extreme alerts on Wednesday as they warned a powerful storm system would ...

A massive storm developing today is set to bring life-threatening tornadoes and potentially historic floods in what could be ...

A massive storm developing today is set to bring life-threatening tornadoes and potentially historic floods in what could be ...

We're tracking an expected tornado outbreak today, with severe weather threatening millions across multiple states. Here is the latest.

As thunderstorms threatened to hit parts of the Midwest and South, forecasters warned of flash flooding and tornadoes.

A massive storm hitting the central U.S. on Wednesday could spin up damaging tornadoes and dump heavy rain from northern ...

Caught in the Storm," explores the tornado that hit Joplin, Missouri in 2011, which reshaped how tornado warnings are issued.

Deadliest twister in recorded U.S. history ... Modern standards qualify the so-called Tri-State Tornado as an F5, a mile-wide funnel with wind speeds greater than 260 mph (418 kph).