As the search continues for the climbers who went missing on Oregon's Mount Hood over the weekend, authorities are predicting the arrival of a winter storm Tuesday.

The storm is expected to deposit at least a foot of snow on the slopes where the climbers went missing. Authorities say whiteout conditions will likely prevent mountaineers or aircraft from conducting their search.

The climbers began their trek up the mountain Friday.

On Saturday, they found the body of 26-year-old Luke Gullberg of Des Moines, Wash.

Anthony Vietti, 24, and Katie Nolan, 29, are still missing. Anthony is from Washington and Katie is from Oregon.

They are Christians who have served around the world as missionaries.

On Monday, the families spoke out about their faith in the midst of the waiting and hoping. Click play to hear their comments.