A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

The polar vortex has taken on an unexpected pattern this winter — one that’s made part of the United States the most unusually cold place on the planet, at least so far this year. While the ...

This will be the 10th time this winter that the polar vortex — which keeps the coldest ... Nebraska, Missouri, Illinois, Iowa, Kansas, Wyoming, Montana, North Dakota, South Dakota, Minnesota ...

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...

Much of the central U.S. is experiencing bitter cold temperatures this week due to a polar vortex, and snow hasn ... Several southwest Illinois schools closed Tuesday, while others pivoted ...