Zone: Northwest Mountains
Location: schuykill ridge – thanksgiving bowl
Date of Observation: 12/04/2020Name: Mark Robbins
Subject: found the facet sluff problem!
Aspect: North East
intentional ski cut on a convexity at 11,150′ on skier’s left side of thanksgiving bowl produced a loose dry avalanche or facet sluff which propagated 30 feet and ran 650 vertical feet, through small trees and exposing rocks below the snow, stopping on a bench in a stand of trees. Enough energy to take you off your feet and moving fast enough to hurt you in the trees or strained through rocks, not enough to bury you. See photo, have a couple videos which I’ll send to CBAC.