Casper Creek/Mt Duke

Map for Mountain Information Network report: Casper Creek/Mt Duke

Information

Avalanche date/time
Wednesday, January 13, 2021
Estimated occurrence time of avalanche
From 24 to 48 hours ago
Number of avalanches in this report
2 to 5
The size of avalanche
3.5
Slab width
300m
Avalanche Character
  • Deep persistent slab
  • Wind slab
Trigger type
Natural
Start zone aspect
  • N
Start zone elevation band
  • Alpine
  • Treeline
Start zone elevation
1,950m
Runout zone elevation
1,525m
Weak layer burial date
Wednesday, December 9, 2020
Weak layer crystal type
  • Surface hoar and facets
Crust near weak layer
Yes
Wind exposure
Lee slope
Vegetation cover
Sparse trees or gladed slope

Comments

Looked like wind slab at ridge top stepped down to early dec rain crust. Crowns were faint and mostly filled in. We assumed this ran during the Jan12/13th cycle.