Observations from south side of Grouse Rock

Less wind scouring than expected at and above treeline on SE aspects in this area. Evidence of previous wind slab development on E aspects along ridgetop, currently nonreactive. Previously wind scoured W aspects at and above treeline near ridgetop were widespread. Recent storm holding in wind protected areas below treeline. Winds increased out of the SW rather than decreased during the afternoon hours as forecast. Minor amounts of blowing snow were observed. New wind slab was less than 1 inch thick with very little additional snow available for wind transport.

Photo 1: Wind scoured W aspects.

Photo 2: Small skier triggered cornice failure on E aspect with very minor cracking on wind slab below.