Avalanche

Irwin Guides

Irwin GuidesGunnison
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Quick report

Collapsing
isolated

One large collapse reported in Asia from guides. Slabs that failed today were easily triggered by single cover shots.

Avalanche

Size
D2.5
Aspect
W
Trigger
AE
Elevation
11600 ft

4F+ slabs 3-4' thick are failing on 10 cm's of 3-4mm facets on the 1/5 interface. The bottom of the slab is 1F in places but a large majority is 4F- 4F+. Castle valley left propagated across a southerly aspect change into Thimble. Castle Valley Left SS-AE-R3-D2.5-O FC (100cm x 30m x 100m) Castle Valley Right SS-AE-R4-D2.5-O FC-01/05 (125cm x 50m x 200m) Failed on 3-4mm FC