As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

The first cold wave will reach the East Coast on Thursday, followed by another surge of frigid air this weekend and more next ...

The polar vortex will push Artic air south, and a severe winter storm could follow. How cold will it get in Louisiana?

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. It ALWAYS exists near ...

The big winter (and popular) topic is dusted off very early this season as frigid air plunges south next weekend. But what is ...

The Earth's polar vortex is stirring up, bringing the first hints of changing weather as the autumn foliage starts to turn and the temperatures begin to drop. The movement means gradual cooling and a ...