Lawine

Avalanche: Bobs Knob

Sean NelsonProvo
Auf der Karte ansehen

Avalanche

Slab Width
53 m
Weak Layer
Density Change
Trigger Type
Skier
Avalanche Type
Soft Slab
Slab Thickness
25 cm
Start Zone Aspect
Southeast
Avalanche Problem
Wind Slab
Start Zone Elevation
2957 m

Toured up near Bob's Knob and the bowl. Noticed heavy wind loading on the N-NE aspect of the bowl and a recent slide (photo). Unsure if it was skier triggered or natural. Continued on the ridge line past Primrose Overlook and towards Robert's Horn. Continued to notice wind loading on the northern aspects. At around 9800', I stopped at a small knoll before the proper Robert's Horn ridge line. I noticed a pocket, now S-SE facing, that I thought would slide given the wind loading and cornices forming on the top of that face. Gave a few kicks to the top of the slope and the entire pocket went. About 8-12" deep and 150-200' wide (video).