- Submitted by
- pelto
- Observations date
- Sunday, March 12, 2017 at 17:00
- Location
- 53.853410° N 121.644450° W
- Reporting on
- Snow conditions
/-121.64445,53.85341,8,0,0/1026x200?access_token=pk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g "Sugarbowl Mountain")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Sunday, March 12, 2017 at 10:00
- Estimated occurrence time of avalanche
- More than 48 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 1.5
- Slab thickness
- 15cm
- Slab width
- 100m
- Run length
- 225m
- Avalanche Character
- Storm slab
- Trigger type
- Skier
- Trigger subtype
- Remote
- Remote trigger distance
- 5m
- Start zone aspect
- NW
- Start zone elevation band
- Treeline
- Start zone elevation
- 1,720m
- Start zone incline
- 30°
- Runout zone elevation
- 1,620m
- Weak layer burial date
- Saturday, March 11, 2017
- Weak layer crystal type
- Storm snow
- Crust near weak layer
- Yes
- Vegetation cover
- Sparse trees or gladed slope
Comments
Avalanche was triggered by skier, crown roughly five meters below skier. I was crossing the top of the slope, which effectively acted as a ski cut. Slide was a fresh storm snow slab sliding on wind slab (windslab visually observed at that location and tested on proximal slopes the previous day). The snow had accumulated the previous afternoon through the night (March 11). Slope was largely open with only a handful of small trees.
