A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

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

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

Some of the coldest air in years is expected to plunge into the High Plains, Midwest and finally the East in the coming days ...

The polar vortex is like a giant, swirling pool of super-cold air in the upper atmosphere over the North Pole. Imagine it like ... air can spill out and slide south, making places like the United ...

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

This blast of cold weather is due to activity of the polar vortex.

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward ... before rapidly moving south and east and encompassing much ...

The polar vortex is always around. It is a channel of strong winds high up in the atmosphere that circles the poles. One over ...

By Monday, extremely cold air will reach as far south as the Gulf ... that level of cold. The polar vortex, a ring of frigid air typically located near the North Pole, will become stretched ...

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