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

A polar vortex will linger through much of the country for most of this February, prolonging the deep freeze for weeks to ...

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.

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 ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

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. Here's the forecast.

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

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

Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can ...

The bitter cold temperatures that have left a chill over the eastern half of the country aren't going anywhere, as a major ...