Quick report
- Slope Angle
- 39°
Avalanche
- Slab Width
- 46 m
- Weak Layer
- New Snow/Old Snow Interface
- Trigger Type
- Skier
- Vertical Fall
- 61 m
- Avalanche Type
- Soft Slab
- Slab Thickness
- 91 cm
- Trigger Detail
- Remotely Triggered
- Start Zone Aspect
- North
- Avalanche Problem
- Wind Slab
- Start Zone Elevation
- 2926 m
Our Level 2 class was walking the PC ridge line. A group of 7 were breaking trail along the ridge, about twenty minutes prior, and likely remotely triggered this slide. While wind slab is less likely to be triggered remotely, the graupel that fell during Sunday night's/ Monday morning's storm on top of the low density snow of Saturday created an upside down structure beneath the wind slab, adding sensitivity. Several areas of wind deposition (large wind rolls) were seen on this NNW slope and the crown appeared to be approx 3 feet deep. Photo 1: avalanche, Photo 2: skin track switchback above avalanche. We spoke with the trail breaking group later; they recalled noting a large collapse in that area but were unaware of the slide, as it was on a steep rollover and out of sight from the ridge. SS-ASr-R2/D2-I