The first cold wave will reach the East Coast on Thursday, followed by another surge of frigid air this weekend and more next ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

In the coming weeks, cold air will continue for parts of the U.S. thanks to the influence of the polar vortex.

A major polar vortex is about to hit the US and could bring weeks of frigid temperatures for millions, with even a chance of ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march ...

Each of these lobes of the Polar Vortex will bring two or three days of bitterly cold, below-normal temperatures. We aren’t ...

Ben Gelber, a meteorologist for NBC4 in Columbus, Ohio, and a Pocono native, said the polar vortex is a large, circular pool of the coldest air in North America that typically hovers high in the ...

Don't let the incoming string of relatively warm days in the greater Philadelphia region fool you; the polar vortex is still ...

This coming weekend, the central and eastern United States will receive a blast of Arctic air, which will also affect ...

CLEVELAND — The temperature outside was so cold that your fingers, toes, nose and cheeks felt like they were burning. A harsh Arctic cold wave brought record-breaking temperatures to the United States ...