Date of Observation: January 2, 2020  1:30 PM
Location of Observation: Tuckerman Ravine: Sluice, Sluice Buttress/Ice area

Human triggered soft slab avalanche. E Slope, approx 30 degrees. Party of one, snowboarder, triggered, caught, carried, not buried as reported by said snowboarder. Crown line starts low in Sluice spans under Sluice Buttress/Sluice Ice. This avalanche did not involve the Lip area or Right Gully. As of this afternoon both reported to be holding significant snow.