More snow for parts of Colorado mountains, plains. Expect DIA delays

<p>(Anna Hanel/CPR News)</p>
<p>A winter storm backs up ski traffic on I-70 between Frisco and Denver.</p>

Parts of Colorado's mountains and plains are getting more snow but the Christmas storm is tapering off in the Denver area.

Denver International Airport is still expecting flight delays averaging an hour on Friday because of de-icing.

Snow was falling up around Loveland Pass this morning and roads looks slick. If you're driving anywhere today, whether out onto the plains or up into the mountains, check the CoTrip traffic cams for current road conditions.

The National Avalanche Center reports considerable avalanche danger throughout the central and northern mountains, where "large and destructive human triggered avalanches are possible.

Another 4 to 6 inches is expected in southwestern Colorado and 3 to 5 is possible in the Glenwood Springs and Eagle area, which could make travel difficult on Interstate 70.

For the first time this year, the Colorado Department of Transportation is requiring passenger vehicles on I-70 between Golden and Idaho Springs to have at least an eighth of an inch of tread on their tires or chains.

Denver got 3.4 inches of snow on Christmas while Grand Mesa got the most with accumulations up to 16 inches.