Colder air is returning to the central and eastern U.S. as the polar vortex becomes more active, bringing fluctuating ...

Another polar vortex is expected to bring subzero temperatures that will affect more than 40 million Americans in the coming ...

Arctic air originates near the polar regions and is among the coldest air masses on Earth. It typically stays locked in ...

The Arctic Oscillation is a metric used to describe the strength of the polar vortex, or mass of arctic air that rotates ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

BUT LET’S TALK ABOUT THE POLAR VORTEX HERE. SO IT’S REALLY AN AREA OF COLD AIR THAT’S TRAPPED AROUND THE ARCTIC. AND IT’S JUST GOING TO IT USUALLY JUST STAYS PUT THERE. BUT WHEN IT WEAKENS, THAT JET ...

Those struggling with high heating bills due to relentless cold and sore backs from shoveling snow in the Midwest and ...

We are sliding closer toward winter, and many gardens are about to face their toughest challenge yet: surviving a polar vortex. And this ain't your typical heavy snowstorm or cold snap; for your ...

If you couldn’t get enough of the cold temperatures in early December, there’s more on the way for Tennessee this coming ...

Last month’s prolonged Arctic outbreak caused the coldest December in 15 years. Winter-weary Berkshire residents are ...

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 ...