Polar vortexes on a warming planet might sound counterintuitive, but there's a scientific reason.

If you're braving the cold during the polar vortex that's skating across much of the US right now, you're probably looking ...

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill ...

A major winter blast is stirring up dangerous conditions across the U.S. central and southern states all the way to the East ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it?

The United States continued to freeze through a polar vortex that brought rare cold to the southern United States and chances ...

Parts of all states in the lower 48 woke up to subfreezing temperatures Tuesday due to a weather pattern that will keep ...

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip, making ...

Veterinarians urge dog owners to rethink their winter walking routines as the polar vortex plummets temperatures for much of ...

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...