Jasper

Problèmes avalancheux

• 

  Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible

  Taille

  2–4

  The buried surface hoar layer remains a concern in areas that have not avalanched following the recent March snow storms. Solar effect is a likely trigger in the afternoon on west through south facing terrain.
• 

  Storm Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible

  Taille

  1–3

  Primarily southwest moderate alpine winds continue to form slabs on lee aspects, but variable winds during the recent snow storms have reverse loaded some features. Smaller windslab avalanches may step down to deeper instabilities.
• 

  Loose Wet

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible - Likely

  Taille

  1–2

  Surface snow is responding to the strong solar radiation effect that happens in March and April. Ice climbers should also be wary of large pillows of snow still overhanging routes on solar aspects.