High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

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The polar vortex is forecast to weaken unusually early, and that could lead to more persistent cold weather in at least parts of the U.S. in December. Last week, almost 100 daily record lows were tied ...

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 ...

You heard that right; the polar vortex is spinning in the opposite direction. It actually happens more than you might think. As Canadians, we are very familiar with the term ‘polar vortex.’ We are ...

Sign up for the Morning Brief email newsletter to get weekday updates from The Weather Channel and our meteorologists. You've likely heard the term "polar vortex ...

It seems like you cannot mention cold weather in the fall and winter without coming across the phrase “polar vortex.” Meteorologists often refer to this weather element as a potential culprit behind ...