196 million under winter weather alerts as massive storm brings dangerous cold and snow

Tonight, the Arctic blast's frigid introduction slamming the country with snow, sleet, and freezing rain set to impact more than half of all Americans. In Arkansas, roads littered with jack knife semis and cars skidding off the road. Chaos in Tennessee as crews rescue stranded drivers.At least 17 states declaring a state of emergency as 196 million Americans from Arizona to New England are under winter weather alerts. This morning, wind chills crashing to the negative 20s and 30s across the plains and upper ...