Howe Sound Crest Trail - Lions descent

Two skiers from the party headed further up the ridge and decided to drop in where they were. Skiing one by one, on the second pitch the lead skier triggered a windslab they were in the middle of, on a west facing, moderately steep (roughly 33 degrees), but planar slope. Slab depth was maybe 20cm and skier was knocked off their feet and went for a ride. Fortunately there were no terrain traps below and the avalanche passed them leaving them sat on the base. Skier was a bit shaken, but no injuries and no lost gear.