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

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation ...

When parts of the vortex break down, lobes of Arctic air can drift south, guided by changes in the jet stream. This allows ...

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

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 ...

Thanks to the polar vortex, the first half of December will bring multiple waves of Arctic air to the U.S. Here's what to ...

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

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 ...

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 ...

The polar vortex is a big swirl of cold air that usually stays locked over the Arctic, but when it weakens, the jet stream can dip south. This week, that jet stream plunge will send frigid air into ...