The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the U.S., Europe ...

The next round of bitter cold was set to envelop the southern U.S. on Tuesday, after the first significant winter storm of ...

According to a National Weather Service map, visualized by Newsweek below, 17 counties are under freeze warnings in Florida, ...

After digging out of Monday's winter storm, will Delaware residents have to do it all over again? Here's the forecast.

According to Texas law, it is illegal to leave your dogs and cats outside without adequate shelter, food, and water. That ...

Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into the United States for an extended visit ...

The National Weather Service said the wind chill temperature was 16 at Dallas/Fort Worth International Airport early Tuesday.

The coldest temperatures of the winter so far are expected in West Virginia over the next few days as what some are calling a ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it?

The polar vortex has triggered freeze warnings and advisories across Texas, threatening human safety and infrastructure.