WASHINGTON (AP) — The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic ...

"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...

After enjoying a brief period of warmth, the United States, including the southeast is once again facing a bitter cold ...

How Alaska’s cold keeps ending up in the Lower 48 A few atmospheric factors — including the polar vortex — have come together to make the US the epicenter of cold this winter. One is a ...

The National Weather Service has issued extreme cold warnings for millions of Americans from the Canadian border to Texas. CBS News correspondent Nicole Valdes reports on the historic low temperatures ...

FOX Forecast Center / FOX Weather The polar vortex has returned to the U.S., and ... National Weather Service offices across the nation have issued Cold Weather Advisories and Extreme Cold ...

Some media coverage has linked the latest blast of cold weather to the polar vortex — an area of low pressure and cold air circulating around the North and South poles in the stratosphere, which ...

Frigid cold temperatures expected as polar vortex sweeps across U.S. after deadly weekend flooding In Atlanta, a person died after a falling tree crushed a home during the storm. Blizzards and icy ...