Jasper

Problemi valanghivi

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

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

  Probabilità

  Possible

  Dimensione

  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

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

  Probabilità

  Possible - Likely

  Dimensione

  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.