Quick report
- Slope Angle
- 37°
Avalanche
- Slab Width
- 244 m
- Weak Layer
- Facets
- Trigger Type
- Skier
- Vertical Fall
- 152 m
- Avalanche Type
- Hard Slab
- Slab Thickness
- 122 cm
- Trigger Detail
- Cornice Triggered
- Start Zone Aspect
- Northeast
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 3231 m
Large slide triggered by kicking a large cornice. Cornice triggered a wind slab when it hit the slope below, which then triggered a persistent slab in an area that had previously slide. Slide then propagated out across the slope. Total width ended up being approximately 800 feet wide, with an average crown depth of 4 feet. Ran approximately 500 vertical, taking out several trees on the way. This is an area that had shown a relatively strong, but highly variable snowpack. Up to this point, there has not been a connected slab. However, iwarming and wind loading created a more connected slab. Natural avalanche activity in adjacent drainages (see separate avalanche observation) shows that other slopes are in the same situation. Photos below show the crown (taken from near the center looking both directions) and debris.