A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

Meteorologist Sven Sundgaard predicted this wacky winter weather back in October, and he explains what's happening now and ...

The sudden blast may come as a shock to many Americans after a mostly mild start to winter, but that warmth may be partly ...

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

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 jet stream, which is affected by the polar vortex above it, has become quite wavy, allowing Arctic air to infiltrate the United States over the next two weeks.

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

Ben Gelber, a meteorologist for NBC4 in Columbus, Ohio, and a Pocono native, said the polar vortex is a large, circular pool ...

The FOX6 Weather Experts track the polar vortex and its impact on southeast Wisconsin. From emergency supplies to stick in ...

The west half of the country, including the Midwest, will start to warm up. But that won't be the case for the East Coast.

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...