highway was hit by an avalanche. >> it's overall just been a terrible, terrible winter. it came out of nowhere. >> reporter: the travel troubles are not behind us yet. according to flight tracker flight aware, at u.s. airports today alone, more than 1,600 cancellations so far for the day at those airports. anna, again, it's still snowing and the winds are making it that much tougher out there right now. >> it looks like the key word today is layers. thank you, jesse kirsch. we'll let you go get warm inside. michelle, it is 40 degrees below zero in chester, montana this morning. wow. how long is this frigid cold going to be with us? >> hi there, ana. they're not alone with those temperatures. they're potentially life-threatening. you can have frostbite between five and ten minutes if you have any exposed skin out there. a little better on wednesday and