Slalok

Map for Mountain Information Network report: Slalok

Information

Avalanche date/time
Sunday, April 8, 2018 at 16:30
Estimated occurrence time of avalanche
From 12 to 24 hours ago
Number of avalanches in this report
1
The size of avalanche
2.5
Slab thickness
20cm
Slab width
40m
Run length
900m
Avalanche Character
  • Wind slab
Trigger type
Skier
Trigger subtype
Accidental
Start zone aspect
  • NW
Start zone elevation band
  • Alpine
Start zone elevation
2,400m
Start zone incline
35°
Runout zone elevation
1,700m
Weak layer crystal type
  • Storm snow
Crust near weak layer
Yes
Wind exposure
Cross-loaded slope
Vegetation cover
Open slope

Comments

A skier triggered sluffs at 40dg. The sluffing area was significantly wider (100m?) that the observed crown (no pic atm), fairly slow moving. The run of the avalanche was shallow. The crust was certainly reactive at around 1700-1800m with about 5cm slab on top of it. Conditions were better in higher elevations with no activity observed except older wet loose slides on rocks and sunny spects. The slab broke at a concave (not convex) feature, probably a wind loaded pocket. The avalanche did not step down to deeper layers. No burial, no injury.