Storm slabs
Observed Apr 20, 2023, 3:00 p.m. PDT · Southwest Coast
This report was submitted with an older form.
Quick report
- Comment
- On our way up we saw evidence of the previous storm cycle with various crown lines up to size 1 (24-48 hours old). After skiing our line (on our exit route), a skiier triggered a size 0.5 while contouring around the base of a steep convex roll feature. Skiier was caught but not buried and there were no injuries. Release was a storm slab on a NE aspect at 1500m.
- Weather
- Stormy
- Ride type
- Mellow slopes, Steep slopes, Open trees
- Stayed away
- Convex slopes, Alpine slopes
- Riding quality
- Good
- Snow conditions
- Deep powder, Powder
- Avalanche conditions
- Avalanche condition snow, Avalanche condition slab
Avalanche report
- Run length
- 4
- Slab width
- 20
- Trigger type
- Skier
- Avalanche size
- 1
- Trigger sub type
- Accidental
- Start zone aspect
- NE
- Vegetation cover
- Open slope
- Start zone incline
- 35
- Avalanche character
- Storm slab
- Number of avalanches
- 1
- Start zone elevation
- 1500
- Weak layer crystal type
- Storm snow
- Start zone elevation band
- Tln
- Avalanche occurrence datetime
- 2023-04-20T22:26:00.000Z
Incident report
- Group size
- 2
- Description
- Skiier carried but not buried. Skiier was skinning along base of convex roll.
- Terrain trap
- No trap
- Group activity
- Skiing
- Number involved
- 1
- Number caught only
- 1
- Snow depth trigger point
- Average
- Terrain shape trigger point
- Planar