Canyon creek avalanche
Observed Mar 4, 2024, 12:03 p.m. PST · Purcells
This report was submitted with an older form.
Avalanche report
- Comment
- Planned to ski a north facing aspect of canyon creek. There was a main gully feature with a convex roll at the top that was around 35 degrees. We ski cut the top of the convex roll and saw a thin 5cm wind slab propagate about 1m off of our ski tips that quickly broke up on the slope and did not slide more than 5m. First skier skied down the left shoulder avoiding the main gully feature and the avalanche triggered 10 metres above the skier and just right of their tracks. The skier cut left into the trees and was not involved in the slide.
- Run length
- 250
- Slab width
- 20
- Trigger type
- Skier
- Wind exposure
- Windward slope
- Avalanche size
- 2
- Slab thickness
- 80
- Trigger sub type
- Accidental
- Start zone aspect
- NW
- Vegetation cover
- Open slope
- Start zone incline
- 35
- Avalanche character
- Persistent slab
- Crust near weak layer
- Yes
- Number of avalanches
- 1
- Start zone elevation
- 2360
- Runout zone elevation
- 2200
- Weak layer burial date
- 2024-02-03
- Avalanche observation
- 12hrsAgo
- Weak layer crystal type
- Storm snow
- Start zone elevation band
- Alp
- Avalanche occurrence datetime
- 2024-03-04T08:01:00.000Z
Incident report
- Group size
- 2
- Description
- Planned to ski a north tilting aspect of canyon creek. There was a main gully feature with a convex roll at the top that was around 35 degrees. We ski cut the top of the convex roll and saw a thin 5cm wind slab propagate about 1m off of our ski tips that quickly broke up on the slope and did not slide more than 5m. First skier skied down the left shoulder avoiding the main gully feature and the avalanche triggered 10 metres above the skier and just right of their tracks. The skier cut left into the trees and was not involved in the slide.
- Terrain trap
- Gully depression
- Group activity
- Skiing
- Number injured
- 0
- Number involved
- 0
- Number caught only
- 0
- Number fully buried
- 0
- Snow depth trigger point
- Shallow
- Terrain shape trigger point
- Convex
- Number partly buried able breathing
- 0
- Number partly buried impaired breathing
- 0