Blowing snow and icy roads in the high country are bringing winter driving conditions to the Rockies.
Plows are working to have Interstate 70 through the mountains fully opened.
Transportation officials closed eastbound I-70 from Vail to Georgetown Thursday night due to the weather.
U-S Six over Loveland Pass also was closed due to a jackknifed semitrailer.
The storm is expected to dump up to 16 inches of snow through Friday.
The National Weather Service has issued a winter storm warning through six a-m Saturday for areas including Rabbit Ears Pass, Breckenridge, Rocky Mountain National Park and the Eisenhower Tunnel.
Gusts could reach 50 miles per hour.