Avalanche: Alta Periphery

Yesterday my son was skiing at Alta. In Catherine's area he triggered a small wind slab avalanche which knocked him of his feet and carried his ski away. Slope was short and steep. (Sorry, the photo is a pic of a pic as the app only lets me take a pic with the UAC app not from my library) Alta Patrol responded and helped him look but his ski was not found. They got him a loaner and he skied out. I skinned up with a metal detector and still couldn't find the ski.

Point release which spread maybe 10-15'. 6-8" crown. Ran 40' or so from release point but that's difficult to determine as there were a lot of footprints looking for the ski. (An older Rossi Scratch if you happen to find it.) debris seemed to pile 1-3' deep but again it was hard to determine from all the searching.