Oboe 190223

Observed rider had run over steepest convexity NW Shoulder Oboe creating a size one loose dry avalanche. Other hits observed in the area, same aspect, failing similarly. All small loose dry. Many slope testers in area, but no slabs triggered. No results in slope tests in drainage; significant wind crust and drift features well below ridge tops on NE through NW aspects. Best riding TL and BTL...