Slow-moving class II of semi-light snow on concave loaded slope (20 degrees at bottom to 35 degrees at the top). Crown 100 M wide, 60 to 100 cm thick. Runout about a half kilometer. Three skiers about 30 M below release swam out, one slightly injured (slope fairly concave, slow-moving at concavity). General conditions semi-light snow 0-30 cm over crust, not much wind slab (this slope maybe 20 bottom- to 40 cm top). No whumping or telegraphing. We had skied steeper slopes with no sloughing or sliding, but perhaps not as deep. No pit dug. Guessing all-new loaded snow.
Snow conditions were: Powder. Weather conditions were: Stormy. We rode: Alpine slopes. We avoided: Convex slopes. Riding quality was good.
Avalache Conditions: 30cm + of new snow, or significant drifitng, or rain in the last 48 hours.