Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the Eastern U.S. with floods, killing at ...

Extreme cold warnings were issued for an 11-state swath of the U.S. stretching from the Canadian border to Oklahoma and ...

A severe cold wave across the central and northern US has brought life-threatening temperatures, snowstorms, and deadly ...