Winter hasn't even officially started, but parts of the country are already bracing for what could feel like the deep freeze ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

Feeling that sudden chill? A triple polar vortex is sweeping across parts of the U.S. Here’s what that means — and where it’s hitting.

That’s what’s happening this weekend: a stretched polar vortex is helping send arctic air deeper into the United States, ...

A polar vortex is a large, low-pressure system of cold air that typically resides near the Earth’s poles, surrounded by ...

Cold temperatures are set to continue on Monday, but New England will feel another icy blast of Arctic air linked once again ...

An arctic air mass has descended into the US, and a disrupted polar vortex will keep the nation in the freezer at times deeper into December. More than 200 million people will wake up to freezing ...

CHICAGO — Midwesterners trudged ahead Thursday into a familiar, grim reality: temperatures well below zero, schools and businesses closed, stern warnings to wear extra layers or, better yet, just stay ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...