Avalanche

Avalanche: Knob Mountain

John Pikus & Zeb EngbergSkyline
View on map

Quick report

Slope Angle
42°

Avalanche

Slab Width
91 m
Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
91 m
Avalanche Type
Hard Slab
Slab Thickness
91 cm
Start Zone Aspect
North
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3048 m

This natural avalanche presumably occured during the storm or the high winds that followed it. This area gets heavily windloaded in south wind events and a cornice was starting to form above the start zone. Similar-looking but smaller avalanches were peppered along the ridge leading northeast from the summit of Knob Mountain.