Avalanche
- Slab Width
- 38 m
- Weak Layer
- Facets
- Trigger Type
- Natural
- Vertical Fall
- 183 m
- Avalanche Type
- Hard Slab
- Slab Thickness
- 122 cm
- Start Zone Aspect
- Southwest
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 3566 m
Avalanche occurred as a result of Dec 26-27 storm event that produced 19" of snow at 2.6" SWE. Failure is assumed to be on a known persistent weak layer of facets 30-40 cms above the ground that formed during the November high pressure. Cross wind loading over the terrain feature was a contributing factor. This is a rare aspect for a faceted persistet weak layer. Stability tests performed that day confirmed a reactive weak layer on southerly aspects.