West Hour Glass

Map for Mountain Information Network report: West Hour Glass

Information

Avalanche date/time
Wednesday, February 9, 2022 at 01:30
Number of avalanches in this report
1
The size of avalanche
2.5
Slab thickness
30cm
Slab width
30m
Run length
100m
Avalanche Character
  • Wind slab
Trigger type
Skier
Trigger subtype
Accidental
Start zone aspect
  • NE
Start zone elevation band
  • Treeline
Start zone elevation
1,800m
Start zone incline
45°
Wind exposure
Lee slope
Vegetation cover
Sparse trees or gladed slope

Comments

Skier triggered avalanche on West Hour Glass. Skied on Feb 8th and snow was stable and non reactive. Warming the following day (Feb 9th) caused the weak layer to become reactive to human triggering and resulting in a 2.5 slab avalanche on a wind loaded feature covered in sparse trees. Skier was carried for 70m until hung up on tree while avalanche continued to slide for an additional 30m.