Boletín de aludes

Banff Yoho Kootenay

Dec 12 – 13, 2014Parks Canada
Ver en el mapa
Archivado · caducó 12 years ago

Peligro de aludes

Fri
Sat
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
Abrir el mapa completo

Lo esencial

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Strong southwest winds have stripped windward areas and created fresh wind slabs in  lee terrain at and above treeline. These windslabs are reactive to skier triggering.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    Snowpack tests show that the weak facets at the base of the snowpack continue to be a concern.

Weather Forecast

Mainly cloudy with isolated flurries and freezing levels around 1700 m for Thursday night. Friday is mainly cloudy with a gradual cooling trend throughout the day. By Saturday freezing levels will be at valley bottom. Winds will switch from strong SW on Thursday night to light from the north on Saturday.

Snowpack Summary

Strong southwest winds have stripped  windward aspects and created fresh wind slabs in lee terrain at treeline and above locations. Mild temperatures have promoted settlement in upper pack, but lower basal layers remain weak and facetted.

Avalanche Summary

Evidence of a small cycle in Yoho Park at and below treeline due to Wednesdays warm temperatures and rain. A fresh slab in past 24 hours was observed on the east side of Mt. Victoria. (2900 m, size 2.5, 200m wide, approx 50 cm deep).

Confidence

Regiones cubiertas