Avalanche
- Slab Width
- 457 m
- Weak Layer
- New Snow/Old Snow Interface
- Trigger Type
- Explosive
- Vertical Fall
- 381 m
- Avalanche Type
- Hard Slab
- Slab Thickness
- 213 cm
- Trigger Detail
- Remotely Triggered
- Start Zone Aspect
- South
- Avalanche Problem
- New Snow
- Start Zone Elevation
- 3048 m
Aspect of the avalanche was south-southeast. Triggered remotely to UDOT avalanche control work in Emma 4 Wyssen air blast. The Wyssen tower was measured out at 2000' from where the slide was.
Slide started on the ridge and then broke out to the gunners right hand side about 9600'. This avalanche flowed down over the summer road and through the gulch. The toe of the debris was approximately 500' linear feet from the UAC "Are you beeping" sign. This was a spectacular avalanche. There were trees that were 12-16" in diamater in the debris field. This avalanche would have been unsurvivable.
Photo 4-5 (Alta Cat Crew )
Photo 6-8(Alta Avalanche Office)