Jasper

Problemi valanghivi

• 

  Storm Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta quota
  • Limite del bosco
  • Sotto il limite del bosco

  Probabilità

  Possible - Likely

  Dimensione

  2–3

  Steep cross or lee winded slopes with steep convex roles are likely slab trigger zones. In the alpine the snowpack depth is highly variable. At treeline travel is good and the snowpack supportive.
• 

  Deep Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta quota
  • Limite del bosco
  • Sotto il limite del bosco

  Probabilità

  Possible - Likely

  Dimensione

  2–4

  Avoid steep cross winded terrain such as old moraines or shallow gullies. Additional loading can trigger large avalanches where the snow has been stiffened by the wind. No new avalanches seen from this layer in the Bald Hills today.