An unusually strong disruption in the upper atmosphere is setting the stage for a winter pattern that could lock much of the ...

A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...

Meteorologists are predicting cold weather across the US after Thanksgiving. Here's what to expect in the Wilmington area.

This dramatic-sounding phenomenon is a naturally occurring component of the Earth’s atmosphere that can play a huge role in ...

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid ...

Meteorologists are observing the beginnings of a polar vortex in much of the U.S. But how does this impact Thanksgiving day ...

This weather event may not be constant, but there will be cold waves over multiple days with single-day warmups mixed in.

Brace yourselves; winter is coming. "Polar vortex" may have been the weather catchphrase of last winter, but it's coming back and it's bringing snow and freezing temperatures along with it. While it ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter ...

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...

A sudden, dramatic shift in temperatures high in the atmosphere will dance with the La Niña weather pattern. There won't be a clear winner.