Jasper

Problèmes avalancheux

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible

  Taille

  1–3

  At higher elevations, hard windslabs may be sitting on the Valentine's surface hoar. On southerly aspects, this surface hoar has formed on top of a sun crust. Slabs on these features could most easily be triggered on unsupported terrain features.
• 

  Loose Dry

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible - Likely

  Taille

  1–2

  Loose surface facets can be found on sheltered slopes at higher elevations. On steeper slopes, these are producing small loose avalanches that may have enough mass to knock over a skier or pry off an ice climber.