Quick report
- Slope Angle
- 39°
Avalanche
- Slab Width
- 46 m
- Weak Layer
- Facets
- Trigger Type
- Snowmobiler
- Vertical Fall
- 183 m
- Avalanche Type
- Hard Slab
- Slab Thickness
- 61 cm
- Trigger Detail
- Unintentionally Triggered
- Start Zone Aspect
- South
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 2743 m
This was triggered from low on the slope.
I visited this site on Thursday (1-21-16). The snow plastered on the tree bases low on the slope indicates a much broader natural slide occurred on the same slope, maybe a day or two before this one was triggered... The natural was likely a storm slab failing on small faceted grains (NSF). The triggered avalanche (1-19-16) failed on the reloaded bed surface lower in the snowpack on weak faceted crystals sandwiched between crusts, with the lower one perhaps the December 8-9 rime-crust.