A skier with a camera filmed it. Fortunately, he made it out.
Chris Bilbao of Portland, Oregon was skiing in the Monashee Mountains in British Columbia when he was swept away by a small avalanche. Bilbao and one of his friends were wearing chest-harness cameras to capture their ski adventure.
When Bilbao finally came to a stop, his friend was able to snowboard down and help him.
No one was injured in the avalanche. I doubt the same can be said about his underwear.