WASHINGTON—The polar vortex hit its peak across much of America on February 19, with an icy grip that made Arctic Greenland seem like a toasty vacation spot in comparison. Even Mars has been warmer ...

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is to blame.

Roads in Virginia and North Carolina remained treacherous Thursday as unusually heavy snow led to hundreds of accidents, including crashes on an interstate that involved more than 50 vehicles.

Dallas-Fort Worth will be sunny but chilly Monday before an arctic cold front prompts an extreme weather watch.

The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.

"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

Officials urged residents to stay off the roads in portions of Virginia and North Carolina where a storm dropped heavy snow ...

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes but is ...

A powerful polar vortex has sent life-threatening cold temperatures deep into the United States, with more than 90 million ...