This was happening last night in Montana.
National Weather Service Missoula MT Feb 3 2019 –
BLIZZARD WARNING UNTIL 9 PM THIS EVENING…WINTER STORM WARNING UNTIL 2 PM MONDAY
Heavy snow and blizzard conditions along I-90 and Highway 200. Winds gusting as high as 50 mph. Additional snow accumulations of 4 to 6 inches.
* WHERE…Potomac/Seeley Lake Region-… Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth.
Travel will continue to be very difficult. Areas of blowing snow will significantly reduce visibility. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes.
Thanks to Kenneth Lund for this link