Valanga

Avalanche: Cascade Ridge

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Quick report

Slope Angle
39°

Avalanche

Slab Width
274 m
Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
686 m
Avalanche Type
Soft Slab
Slab Thickness
38 cm
Start Zone Aspect
Northeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3231 m

2"-6" of faceting early November snow remained on mid and upper elevation ENE - NW slopes. The past 2 storms have deposited 12"-20" of new snow ontop of these facets with the density increasing throughout the middle of the new snow pack. This higer density snow in the mid pack is very supportable, and aided in propegation accross a wide area and onto sub-ridges. Human triggered collapsing accross the canyon was still prevalaint the following day. SW winds with transport and upper elevation riming also occured through the storm.