Macdonad West Shoulder
Observed Mar 13, 2026, 8:15 a.m. PDT · Selkirks
This report was submitted with an older form.
Quick report
- Weather
- Cloudy
- Ride type
- Dense trees, Open trees, Mellow slopes
- Stayed away
- Convex slopes, Alpine slopes, Steep slopes
- Riding quality
- Good
- Snow conditions
- Powder
- Avalanche conditions
- Avalanche condition snow
Avalanche report
- Comment
- Triggered a size 1-1.5 slab avalanche on the up track of MacDonald West shoulder. No signs of instability prior (no whumpfs or shooting cracks). No skier was caught. Prompted us to stay below tree line and avoid steeper slopes for the rest of the day. The slab released on what could be the rain crust extending higher than expected, or a solar crust layer. The failure was not on the persistent layer.
- Run length
- 30
- Slab width
- 20
- Trigger type
- Skier
- Avalanche size
- 1.5
- Slab thickness
- 60
- Trigger sub type
- Accidental
- Start zone aspect
- SW
- Vegetation cover
- Sparse trees
- Start zone incline
- 30
- Avalanche character
- Wind slab, Storm slab
- Crust near weak layer
- Yes
- Number of avalanches
- 1
- Start zone elevation
- 2020
- Start zone elevation band
- Tln
- Avalanche occurrence datetime
- 2026-03-13T17:10:00.000Z