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

Add Yahoo as a preferred source to see more of our stories on Google. Much of the country will be hit with extreme low temperatures over the next week as a polar vortex sends cold air down from the ...

Bitter cold is expected across much of the U.S. this weekend. But what do headlines mean when they say a "polar vortex cold snap" is on the way? The polar vortex is a regular feature of Earth's polar ...