I observed this recent avalanche debris from Emerald Lake at the base of Timpanogos Glacier. Incidentally, the warming hut is completely buried under 15' of snow base-no sign of it at all. Start zone was beneath the cornice, then expanded, and then ran over some cliff bands onto the glacier proper. One of several avalanche paths noted along Primrose Cirque Route that had all flavors of slides: large and scouring wet avalanches, manageable storm sluffs, and of course, those tricky hidden wind slabs.