A significant winter storm is set to disrupt Thanksgiving travel as severe weather conditions, including snow and frigid temperatures, affect multiple regions in the U.S. The National Weather Service forecasts an 'Arctic outbreak' bringing dangerously low temperatures across the Central U.S. on Wednesday and Thanksgiving Day. Up to 6 feet of snow is expected in some mountain ranges, particularly the Rockies and Sierra Nevada, complicating travel logistics for an estimated 79.9 million travelers. Traffic congestion is anticipated, particularly on Tuesday and Wednesday, with airports currently functioning smoothly despite the influx of passengers.