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 and how does it impact our weather? The polar vortex is like a ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

CHICAGO (CBS) — A chunk of the polar vortex is present in the Chicago area, bringing the coldest temperatures of the season with dangerous wind chills. The polar vortex is an ever-present, large area ...

The polar vortex, a mass of cold air over the Arctic, is beginning its seasonal strengthening. A strong polar vortex typically keeps the coldest air locked near the North Pole. A weaker or wobbling ...

The U.S. is set to feel the impacts of an Arctic polar vortex next week, meteorologists have warned, with sub-zero temperatures possible across much of the country. Meteorologists explained that polar ...

The Earth's polar vortex is stirring up, bringing the first hints at changing weather as fall descends on the U.S. This movement means gradual cooling and a more active storm track across the northern ...

Summer may end on a cooler note for parts of the U.S., with meteorologists suggesting that a weakened polar vortex could usher in below-average temperatures as September begins. In contrast to earlier ...

Back-to-back cold blasts will last throughout much of January. Multiple rounds of frigid, arctic air could sweep across the eastern half of U.S. in the coming weeks, ushering in an abnormally cold ...

Summer may end on a cooler note for parts of the U.S., with meteorologists suggesting that a weakened polar vortex could usher in below-average temperatures as September begins. In contrast to earlier ...