unfortunatly as much as I know we want them to be alive. I can almost guaranttee there not!! Im an avid backcountry snowboarder and have been in similiar situations. those guys have supplies so there is hope but they may be buried! the 2 men left the snow caves that they had built for survival! Just an FYI when u build a snow cave it takes alot of energy out of you and u have to stay awake or u will be buried in!! the constant snow will cover your hole it has almost happend to me and a buddy before!! thank the lord for BEACONS..from what ive heard and read these guys dont have beacons!!
They are in my prayers for i know this can happen to me or anyof my hiking friends!