Cold front about to impact 200 million Americans

(CNN) - The calendar may still say autumn, but old man winter just won't quit. Yes Thanksgiving is two weeks away, but millions of Americans are now experiencing a cold front - causing the mercury to plummet and creating dangerous conditions.

Heavy snow pounded Marquette, Michigan Tuesday, leaving roads virtually impassable. In Minnesota, ice and snow caused hundreds of accidents statewide and led to at least one fatality. And in Billings, Montana, temperatures dropped from the 50s this weekend to the single digits today.

CNN National Correspondent Gary Tuchman joined "The Lead" live from frigid Billings, Montana.