Jasper

Problèmes avalancheux

• 

  Loose Dry

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Unlikely

  Taille

  1–2

  Light snowfall has buried a surface hoar layer. It is not a concern for large avalanches but will cumulate into a problem as windloading and new snow input occurs. It is found more preserved TL and below as winds flatten it in the alpine.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Unlikely

  Taille

  2–4

  A large trigger such as a cornice failure or shallow spots for people could initiate the basal facets on steep unsupported NE aspects. Conditions are generally safe yet watch for unstable snow on isolated terrain features.