While forecasters can't yet say for sure, a warmer stretch of weather appears likely for much of the nation. Here's when to ...

More dangerously cold air is on the way for much of the U.S. Will Tennessee be impacted? Here's what to know.

A major weather pattern change underway across U.S. As we get into next week, the storm track looks really interesting.

While the Northeast braces for another frigid polar vortex, Oklahoma will experience unseasonable temperatures. Here's when ...

The polar vortex that has locked much of the country into a deep freeze is finally loosening its grip, and the atmosphere is already lining up a very different pattern. Forecasts point to a sharp but ...

The Polar Vortex is expected to be impacted by a Sudden Stratosphere Warming, bringing cold air to the eastern US.

Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire.

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.

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

The Polar Vortex is expected to be impacted by a Sudden Stratosphere Warming, bringing cold air to the eastern US.