Brutal midwinter cold is settling in across the eastern United States, and forecasters say it is not leaving quickly. A ...

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.

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

A shift in the polar vortex has forecasters watching closely as the coldest air of the season approaches. Here's what to know ...

Extreme weather is sweeping across the United States. Friday, the polar vortex will peak, bringing freezing temperatures to much of the country.

With over 170 million Americans facing below average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in a deep winter feel and park ...

A massive winter storm named fern is set to sweep across much of the United States, bringing snow, ice and extreme cold. Over 230 million people could be affected, with major travel and power ...

So far this winter, the East has endured frigid temperatures and record snowfall, now, some relief may be in sight. While much of the West hasn't seen the winter weather it is used to, a change in ...