Nearly one out of every three flights in and out of Denver International Airport have been canceled Monday in anticipation of a blustery winter storm. (Denver Post via AP)

DENVER | Airlines have cancelled nearly a third of daily flights at Denver International Airport because of snow that’s expected to continue through Tuesday.

Nearly one out of every three flights in and out of Denver International Airport have been canceled Monday in anticipation of a blustery winter storm. (Denver Post via AP)

No significant delays were being reported so far Monday. Up to about a foot of snow could fall at the airport before a series of storms moves out of Colorado.

School is canceled in the Grand Junction area. In El Paso County, county offices are closed because of the snow and the Defense Department is only requiring “mission essential” soldiers and civilian employees to report to work.

More snow is also expected in the mountains, where a foot or more of snow already fell over the weekend. That’s raised the risk of avalanches, especially in the central and southwestern mountains.