Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...

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 ...

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will ...

The effects of the polar vortex are expected to reach Texas on Monday and bring freezing or below-freezing temperatures ...

A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this ...

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 ...

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...