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Avalanche: White Mountain

Observer Name
James Byars
Observation Date
Saturday, February 25, 2023
Avalanche Date
Saturday, February 25, 2023
Region
Skyline » Salina Canyon » Salina Creek » White Mountain
Location Name or Route
Three Lakes zone
Elevation
10,500'
Aspect
East
Trigger
Snowmobiler
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Soft Slab
Depth
18"
Width
90'
Vertical
150'
Comments
Forecaster comments: It is possible the weak layer was a layer of facets from radiation recrystalization. We visited the area the following week and looked at a similar avalanche just a bit north. There was a thin heat crust noted at the fracture line. This is consistent with facets from radiation recrystalization. The aspect and slope angle also support radiation recrystalization at this time of the season. There was a significant avalanche cycle in the Central Wasatch where a layer of facets from radiation recrystalization was the weak layer.
Coordinates