A "dynamic" weather system sparked a "historic" tornado outbreak across the U.S. and has already left 16 people dead.

A forecast map from the weather outlet showed ... were in the risk area. "The same storm forecast to produce patchy clouds and spotty shower activity over the Southwest to the end of the week and into ...

A winter storm is set to bring snowfall from the Central Plains to the mid-Atlantic, while dangerously cold air spreads from ...