In a year without much winter weather, there’s a chance of a bitter blow before spring takes hold. Experts say a disruption of the polar vortex could unleash cold, stormy conditions to the ...

Although the term polar vortex may seem relatively new, it isn’t. Disruptions of the vortex were first written about by German meteorologist Richard Scherhag in 1952 — over 70 years ago.

Rather, a polar vortex is a "well-known feature of Earth's atmosphere that describes the high-altitude winds that blow around the pole every winter, miles above us in a region called the ...

On Monday, the polar vortex will reach the Deep South, with temperatures down to the freezing point of 32 degrees Fahrenheit in Atlanta. Wind chills will be in the 20s.

WASHINGTON — We are in the middle of a blast of extreme cold weather in D.C. The polar vortex has shifted, spilling cold air across the U.S. with below freezing temperatures and subzero wind chills.

WASHINGTON — It's been a mild winter, but a cold air outbreak could show up before winter is over. Polar vortex experts are watching a phenomenon that could throw the vortex off balance and send ...

WASHINGTON (AP) — The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic Greenland seem like a toasty vacation spot in comparison. Even Mars has ...

The polar vortex, which is a big circulation across the northern part of the globe, could play a role. In El Niño years, the polar vortex usually stays strong, and it keeps a lot of cold air ...

The inauguration for President-elect Donald Trump will take place Monday in Washington, D.C., where the forecast shows a high of 24 degrees for Capitol Hill and a low of 8 degrees.