Old wind slab avalanche on Twin Peaks

Touring up near the twin peaks area today, we saw an obvious wide crown in the middle third of the slope below twin peaks. Seems to have been a natural wind slab avalanche that happened on the Jan 4th storm since it was partially filled in and the debris was scoured away from last night's storm. There were some additional crowns in the lower left of the picture. It was not obvious what the trigger was other than natural causes.

Throughout our tour on low angle meadows, we encountered widespread wind gusts, drifting snow, and variable wind affected snow.