Avalanche

Avalanche: Red Snow Cirque

Trenbeath, GarciaMoab
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Avalanche

Slab Width
152 m
Weak Layer
Facets
Trigger Type
Natural
Vertical Fall
91 m
Avalanche Type
Hard Slab
Slab Thickness
122 cm
Start Zone Aspect
Northeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3536 m

First significant avalanche of the season. Two storms - 18" in late October, and 5"-7" in early November left 18" -24" of snow on the ground. Almost three weeks of high pressure in November faceted the entire snowpack. 7" of snow fell on November 28, followed by a week of erratic, slab building winds. 14" at 1.4" SWE fell during a 48 hour period between December 7-8 with moderate to strong SW winds.