The next round of bitter cold was set to envelop the southern U.S. on Tuesday, after the first significant winter storm of ...
A huge swath of the U.S. is being blasted by ice, snow and wind, as the polar vortex that dipped south over the weekend is keeping an area stretching from the Rocky Mountains to the coast of Maine in ...
The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the US, Europe ...