Banff Yoho Kootenay

Problèmes avalancheux

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible - Likely

  Taille

  1–2

  Strong NW winds over the last 24-hours have created windslab conditions in open areas at higher elevations. These have been reported to be fairly stubborn to trigger today at Sunshine Village,
• 

  Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Very Likely

  Taille

  2–4

  The Valentine surface hoar down up to 90cm is overlain by a stiff slab and remains very sensitive to triggers. Natural activity has slowed somewhat,but a few solar releases (Urs Hole) to size 3 were seen. Some slopes have reloaded over the last day.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible

  Taille

  2–4

  The deep facets in the Rockies snowpack are awake again. These have mainly been observed on bigger features where the weight of the initial avalanche triggers the basal depth hoar, causing very large avalanches.