The polar vortex could return to freeze the Midwest, Northeast
Thursday, October 16, 2014 - 12:31
in Earth & Climate
Gabrielle LevyCOLLEGE PARK, Md., Oct. 16 (UPI) -- Last year's winter weather misery could be priming for a repeat performance, with a potential for the frigid polar vortex to make an unwelcome return.