Why Polar Vortexes Are Becoming More Common What do you think about this topic? Share your thoughts in the comments below — ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the ...

all that icy air stays tightly locked around the arctic, keeping the freezing temperatures up north. But just like when a top starts to slow down and wobble, the polar vortex can sometimes get out ...

An Arctic blast that began in the northern plains on Saturday spread bitter cold from the Rockies through the East Coast and ...

A rush of Arctic air will plunge parts of North America into bitter cold this weekend, bringing heavy snow, strong winds and ...

If you thought last week was cold, hold onto your hot lattes and be ready to bundle up as (another) winter storm is forecast to plunge arctic air deep into the Deep South by early next week.

When this stratospheric vortex becomes disrupted or stretched, it can distort the jet stream as well, pushing it southward in some areas and causing cold air outbreaks. The Arctic polar vortex is ...

Up next: another visit from the polar vortex. An Arctic air mass plunges into the Lower 48 next week. This brings the potential for multiple nights with subzero wind chills in the Ohio Valley.

This setup is driving the East Pacific Oscillation ... However, as the polar vortex stretches in the coming week, it will ...

The polar vortex is an enormous ring of powerful winds spinning above the North Pole. It normally circles the Arctic and it typically stays contained by a strong jet stream, but when this ring of ...