Colorado braces for bitter cold and heavy snow during Broncos-Patriots game

Dangerously cold air and heavy snowfall are moving into Colorado, with wind chills possibly as low as -20°F and snow likely at the Broncos-Patriots AFC Championship game in Denver; a First Alert Weather Day is in effect. The Denver metro area could see a trace to 2 inches by Saturday, with more snow Sunday, while mountains could pick up substantial totals (up to a foot or more in places) and avalanche warnings near Crested Butte.