Banff Yoho Kootenay

Avalanche problems

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpine
  • Treeline
  • Below treeline

  Likelihood

  Possible

  Size

  1–2

  Thin windslabs exist at treeline and in the alpine. These are faceting out with the cold temperatures, but may be triggered by riders in the next few days. An avalanche on this layer may be enough to step down to the basal facets.
• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpine
  • Treeline
  • Below treeline

  Likelihood

  Likely

  Size

  2–3

  Climbers should avoid Cascade Falls and Rogan's Gully this weekend. There is a large amount of snow above these routes and with the coming storm and warm temp's, natural avalanches will threaten routes with large bowls above.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpine
  • Treeline
  • Below treeline

  Likelihood

  Unlikely - Possible

  Size

  2–3

  Cold temperatures are facetting a well settled midpack which overrides a weaker facetted base. This weak base is found most places except the west side of the divide. Many thin spots exist in the alpine and treeline due to previous strong winds.