Extreme Weather Alert: Kentucky Floods, Northern Plains Deep Freeze | US Weather Update

More than 95 million people in the U.S. are facing gripping cold Tuesday as a polar vortex sends temperatures plunging to record levels, closing schools, bursting pipes and forcing communities to set up more temporary shelters for the homeless. Meanwhile, deadly flood-battered Kentucky braced for the winter storm.
"Some of the coldest temperatures of the entire winter season right now across the central United States," said Andrew Orrison, a meteorologist with the National Weather Service.