Heavy fog is causing some problems at the Missoula International Airport.
A pair of Monday flights are being delayed due to the weather.
A Delta Airlines from Minneapolis and an Alaska Air flight from Seattle have been delayed.
As a result, the 11:41 a.m. Alaska Air flight to Seattle is delayed as is the 12:13 p.m. flight to Minneapolis.
The latest flight delay and cancellation information can be found here .
A dense fog advisory has been issued for the Missoula and Bitterroot valleys through 10 a.m.