Jasper

Problèmes avalancheux

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Unlikely - Possible

  Taille

  1–3

  Moderate SW winds have been building thin wind slabs on lee slopes and terrain features in the alpine. Slopes look thick and pillowy, but no avalanches were observed and we did not observe any cracking or other signs of propagation on these slabs.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Unlikely - Possible

  Taille

  2–4

  All though few and far between, large avalanches continue to be observed by large loads (large cornice fall) on this layer. Corniced steep slopes on rocky terrain should be avoided.