This was a repeater. Two days earlier I had hiked up Broads Fork and concluded (wrongly) that all the usual avalanches had come down. Saturday morning while we were climbing the west ridge of Dromedary Peak we heard a roaring noise from Broads Fork and saw the toe of this avalanche emerge from under the clouds. The photo was taken in the afternoon as we hiked past the avalanche. It started on the wet quartzite slabs. They must have been very wet at dawn, because it took only an hour of weak sunlight through the clouds to trigger the slide.