Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and ...

ANNAPOLIS, Md. — 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 ...

Is the polar vortex hitting Georgia? The NWS also explained what the polar vortex is. It is a large area of low pressure and cold air surrounding both of the Earth's poles.

The polar vortex has taken on an unexpected pattern this winter — one that’s made part of the United States the most unusually cold place on the planet, at least so far this year.

The polar vortex has taken on an unexpected pattern this winter - one that’s made part of the United States the most unusually cold place on the planet, at least so far this year.

This week, parts of the U.S. are experiencing the 10th and coldest polar vortex event this season. Weather forces in the Arctic are combining to push the chilly air into the U.S. and Europe.

LOUISVILLE, Ky. (AP) — Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms pummeled the eastern U.S. over the ...

Polar vortex to bring frigid temperatures, snow and ice to millions of Americans About 60 million people are forecast to experience subzero temperatures. The polar vortex may also fuel yet another ...

New York could see the “snowiest” storm of the season this week as biting-cold temperatures sweep across the nation, ushering in a frigid polar vortex that will leave parts of the US suffering ...

A polar vortex brings life-threatening cold to the U.S. after deadly flooding in Kentucky. Temperatures could plummet to 45 below zero, prompting warnings across multiple states as rescue efforts ...

By Ben Noll, The Washington Post The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the ...