Avalanche
- Slab Width
- 274 m
- Weak Layer
- Facets
- Trigger Type
- Natural
- Vertical Fall
- 1143 m
- Avalanche Type
- Hard Slab
- Slab Thickness
- 91 cm
- Start Zone Aspect
- North
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 2987 m
Observed from the ridge of Bonkers looking into Stairs, so limited ability to evaluate. Appeared to be a natural likely occurring during the storm on 3/6. The crown was on the northeast facing rock slab on the upper section of stairs gulch and propagated across. Difficult to tell how wide, and could not see how far it ran.