A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Forecasters have warned that a rare weather event in the form of a polar vortex will bring snow and ice to millions as it ...

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

The University of Wisconsin-Madison faced a frigid start to the semester, with the polar vortex expected to bring more icy ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

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