A piece of the polar vortex is spilling into the Midwest, creating extreme cold for the Chicago area and northwest Indiana ...

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A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

Another blast of winter weather is expected in parts of the U.S. in the coming days, including bone-chilling wind in the ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

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

The polar vortex is a ring of cold air that typically circles the Arctic. A strong jet stream essentially acts like a fence, ...

The polar vortex will extend into the metro St. Louis area Saturday, bringing several days of temperatures plunging to single digits and wind chills below zero.

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and ...

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to ...