After a winter storm this weekend, the polar vortex will return, bringing subzero temperatures to around 80 million people from Montana to Maine and potentially as far south as northern Texas.

The latest arctic blast will move into the northern Rockies and northern Plains Saturday and spread to the central and eastern U.S. through much of next week.

Ben Noll, 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