Heavy snow causes travel mayhem in Colorado, Wyoming

  • This Nov. 20, 2019, photo shows traffic moving slowly along the Mount Rose Highway after a good dusting of snow covered the mountains near Reno, Nev. Thanksgiving travel is an ordeal under the best of circumstances, and a one-two punch of bad weather threatens to make it even more exhausting. (Andy Barron/The Reno Gazette-Journal via AP)

DENVER — A storm that dumped heavy snow in Colorado and Wyoming forced airlines to cancel hundreds of flights in Denver on Tuesday and has made driving impossible in some parts of the two states just as the busy Thanksgiving week travel period went into high gear.