Don't worry couloir

Skiing don't worry couloir, observed old avalanche activity buried by 5-10cm storm snow in upper half, as well as developing stiff wind slab. Triggered storm slab down 5-10cm above choke. On the runout slope below some deeper layers were also triggered, estimated maximum depth of 20cm. I think most of the volume of debris pictured was from this. No skiers were caught or injured.