Here we go:
My son and I helped pull an alive man out of a tree well today. By the time we got there he said he had been stuck for 10 minutes. He had gone in head first and managed to get his skis off and turn himself right side up but was still shoulder deep in snow. He was doing everything right, skiing with friends, had a whistle, knew the terrain etc... but his friends didn’t see him submarine and kept going down the hill. With nearly 5’ of loose snow walking anywhere was impossible. It took me a couple minutes with my skis on to position myself to pull him out. He was in shock and had a very difficult time getting down the hill back to the lift but will be okay. Be careful out there friends!