A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...

Grab your coats, it's getting chilly. A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days. The polar vortex will ...

A polar vortex is expected to bring multiple rounds of Arctic cold through the U.S. this month, including “by far the lowest temperatures of the season so far” for much of the Northeast, according to ...