The extreme cold that has gripped much of the eastern United States this winter shows no immediate signs of relenting, as a significant disruption to the Polar Vortex is expected to occur later in ...

After this weekend's snow storm moves out, cold Arctic air will move in.

Forecasters are warning that the breakdown of the polar vortex high above the Arctic will not bring relief from winter, but ...

Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

Starting Thursday, dangerously frigid air from Siberia and the North Pole is forecast to plunge the Great Lakes region into ...

Brutal midwinter cold is settling in across the eastern United States, and forecasters say it is not leaving quickly. A ...

In the wake of the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the polar ...

What is the polar vortex? This article explains what a polar vortex is in simple terms, how it influences winter weather in ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee this coming ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. Here's what to know in Middle ...

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what could happen.