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.

An unseasonably fierce polar vortex is sweeping across the United States, thrusting nearly twenty states into a deep freeze ...

New York could see a return of Arctic air around Thanksgiving as models suggest a possible wobble in the polar vortex, ...

Swaths of central and eastern states have received much less snow than average over the past five winters – a trend that may ...

A major change in the stratosphere may reshape winter weather across the United States. Meteorologists say unusual warming ...

Wisconsin is in store for a warmer weekend, but could see a return of Arctic air around Thanksgiving as models suggest weakening in the polar vortex.

Hagers-Town Town and Country Almanack weather prognosticator Chad Merrill provides his prediction for how much snow the Hagerstown area will get.

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 ...

New York City recorded its first snow of the season as a powerful polar vortex swept across the eastern US, bringing Arctic ...

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 ...

After a brief warm up, we are once again facing a bitter cold weather pattern. Not only in the Gulf coast region, but across much of the United States. This shift is due to yet another dip in the ...

The polar vortex has taken on an unexpected pattern this winter - one that’s made part of the United States the most unusually cold place on the planet, at least so far this year. While the swirling ...