Banff Yoho Kootenay

Avalanche problems

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpine
  • Treeline
  • Below treeline

  Likelihood

  Possible - Likely

  Size

  1–2

  Soft windslabs up to 30cm thick have formed in the immediate lees of ridgetops. These have been of low cohesion with not much significant mass. Expect moderate SW winds Tuesday in the alpine which will add thickness to these slabs.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpine
  • Treeline
  • Below treeline

  Likelihood

  Unlikely - Possible

  Size

  2–3

  Although we have seen less activity on this layer in the last week, light loads can still cause slides on the basal depth hoar/October rain crust. Steep, thin areas are the most prone to triggering. This is less prevalent in thicker snowpack areas.