Rider report sounds like he triggered the deep persistent slab. We are highly confident this avalanche failed on the January facet layer.
Soft slab avalanche was snow machine triggered today. The slab spider webbed around rider.
They hit other steep stuff today without any red flags.
Rider report sounds like he triggered the deep persistent slab. We are highly confident this avalanche failed on the January facet layer.
Trigger | Snowmachiner | Remote Trigger | Unknown |
Avalanche Type | Unknown | Aspect | West |
Elevation | 4600ft | Slope Angle | unknown |
Crown Depth | 4ft | Width | unknown |
Vertical Run | unknown |
Avalanche was reported to be 4' at the deepest part of the crown. Avalanche was fast!
Recent Avalanches? | Yes |
Collapsing (Whumphing)? | No |
Cracking (Shooting cracks)? | No |
Limited information reported. Only known info is that a rider triggered a large persistent slab avalanche today and rode out without incident.