- Submitted by
- Reuben Krabbe
- Observations date
- Tuesday, December 15, 2020 at 21:00
- Location
- 50.077094° N 122.870211° W
- Reporting on
- Snow conditions
/-122.87021146398695,50.07709443241308,8,0,0/1026x200?access_token=pk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g "Blackcomb windslab")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Tuesday, December 15, 2020 at 01:00
- Estimated occurrence time of avalanche
- Less than 12 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 2
- Slab thickness
- 30cm
- Slab width
- 20m
- Run length
- 30m
- Avalanche Character
- Storm slab
- Wind slab
- Trigger type
- Skier
- Trigger subtype
- Accidental
- Start zone aspect
- NW
- Start zone elevation band
- Alpine
- Weak layer crystal type
- Storm snow
- Crust near weak layer
- No
- Wind exposure
- Lee slope
- Vegetation cover
- Open slope
Comments
Skier triggered avalanche, ridden for 20 meters without injury. No wumphing prior to incident. Avalanche triggered as ascending slope, failure on low density snow 15cm below the surface wind slab
and stepped down to 30cm.
Rain crust 40cm below was not involved.
Two pits dug beside the crown and side of the avalanche failed sudden planer 10-15cm down, while trying to isolate the column.
