Avalanche

Avalanche: Seeley Canyon

Snowest user UtahEdgeSkyline
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Avalanche

Slab Width
27 m
Weak Layer
Facets
Trigger Type
Snowmobiler
Vertical Fall
91 m
Avalanche Type
Soft Slab
Slab Thickness
61 cm
Trigger Detail
Remotely Triggered
Start Zone Aspect
Northeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3170 m

Reported on Snowest snowmobile forum. Judging from the picture it appears that this was remotely triggered from below when someone took a stab at the center of the slope and it broke above them.