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

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

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 ...

After a brief lull that tempted some to declare the season finished, forecasters are warning that the atmosphere has other plans. A recharged polar vortex is poised to drive another round of bitter ...

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

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

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

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 ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

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

"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.