Sudden stratospheric warming is expected to keep a weakened vortex splintered, plunging the region back to record-breaking ...

Image Credit: Max Velocity - Severe Weather Center ...

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

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

The bitter cold temperatures that have left a chill over the eastern half of the country aren’t going anywhere, as a major disruption to the Polar Vortex is coming this month.

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

A fresh storm is lining up for the middle of the week across the eastern United States, but this time the bigger story will be soaking rain rather than blockbuster snow for most communities. After a ...

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

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

"Potentially hundreds of thousands of people may go without electricity and heat for days, one meteorologist said ...

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