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 ...

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

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

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

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.

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

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

Waves of frigid air will continue to be released into much of the eastern United States through at least the middle of the month. The ongoing pattern may trend stormier with areas of snow and ice ...

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

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.

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