Not sure if we remote triggered this, or if a small cornice dropped a bit down-ridge did the trick...  Even could have been natural, as we noted extensive drifting and rapid cornice build-up.  Came around the corner on the ridge-line and noticed this very fresh (only minutes old) soft wind slab or storm snow avalanche..  The avalanche involved drifted snow from overnight and today and snow from Monday, and it ran on the interface of the dusty snow that was on the surface last weekend...   Looked like remote triggered cornice fall from us around 100' away or small recently dropped cornice chunks rolling low on an adjacent slope.   Either way, showed evidence of pretty sensitive conditions.....