More dangerously cold air is on the way for much of the U.S. Will Tennessee be impacted? Here's what to know.

Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

Florida has endured a winter few could have predicted. Since early November, the state has endured at least three rounds of Arctic air, and even snow.

During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

This winter’s harsh run in the East is intensifying, with some of the coldest air so far this season plunging into Vermont this weekend.

Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms.

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

The polar vortex is sending arctic blasts and chilly temperatures to most of the United States, and states from Texas to Oklahoma could see snow, sleet and ice. As of Wednesday, Jan. 21, millions of ...