Since the Ice Ages, the Polar Vortex has acted as a climatic gatekeeper. When breached, it unleashes freezing air into regions unprepared for it. This decade, those breaches are becoming more frequent ...

The term “polar vortex” might conjure images of mythical icy storms swirling through the North Pole but in reality it’s a ...

The only phenomenon frigid enough to generate that kind of chill is the polar vortex, of which you may have heard but might not fully understand. There are not one but two polar vortexes in each ...

The vortex is strongest during the winter and usually weakens or even disappears in the summer. When the polar vortex weakens or even splits, it allows frigid air to escape and push southward ...

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the ...

The polar vortex split will help cause temperatures to plummet and potentially set the stage for some snowstorms. A recent strong "sudden stratospheric warming" event has caused the vortex to weaken.

A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central and eastern states this week, bringing some of the coldest air of the ...

The polar vortex appears to be on the move. That’s because stratospheric warming is occurring at high altitudes above the North Pole, resulting in a spike in temperatures. That, in turn ...

The connection, Cohen said, lies in the polar vortex, a swirling body of frigid air that circles the Arctic. A second polar vortex swirls over Antarctica. Typically that cold air is contained by a ...