Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

When parts of the vortex break down, lobes of Arctic air can drift south, guided by changes in the jet stream. This allows ...

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

This coming weekend, the central and eastern United States will receive a blast of Arctic air, which will also affect ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they work.

The Polar vortex is causing temperatures to plummet dangerously across the Philadelphia region, and frostbite could become a ...

During winter, as the Arctic falls into 24-hour darkness, extreme cold builds over the Pole. This helps to create a ...

A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast says the low ...

Another strong cold front is headed straight for Texas as a polar vortex continues to send arctic blasts spinning off across ...

CLEVELAND — The temperature outside was so cold that your fingers, toes, nose and cheeks felt like they were burning. A harsh Arctic cold wave brought record-breaking temperatures to the United States ...