Boletín de aludes

Kananaskis

Dec 13 – 14, 2021Avalanche Canada
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Archivado · caducó 5 years ago

Peligro de aludes

Wed
Thu
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil

Lo esencial

Another 5 to 10cm on the way Tuesday, which will do little to change the hazard levels. Steep and unsupported terrain at Treeline and above are a concern for human-triggering. 

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1.5–2.5

    Wind slabs are present in open areas at Treeline and in the Alpine. In most places these slabs seem "sluggish" to initiate with ski cutting, but there is still concern for triggering in steep and/or unsupported terrain. the Alpine looks freshly loaded in lee and cross-loaded terrain.

Snowpack Summary

Between 40 and 60cm of recent storm snow remains mainly low density with little wind effect below 2400m. Above this lee and cross-loading is evident. At upper elevations a soft wind slab is producing isolated cracking along ridge crests, and it is expected that wind slabs are more sensitive higher in the Alpine especially on steep and unsupported terrain.

Terrain and Travel

  • Avoid steep, unsupported slopes.
  • Approach lee and cross-loaded slopes with caution.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

Confidence

High -

Weather Forecast

Tuesday will see light flurries under mostly cloudy skies. Accumulations of between 5 and 10cm are expected. Winds will be generally light from the SW with temperatures reaching -7C. Wednesday looks to be similar with slightly cooler temps and maybe a bit more sun.

Avalanche Summary

A few smaller loose dry avalanches in very steep lee and cross-loaded terrain were observed today. The slab activity up to size 2.5 in steep Alpine terrain that was observed yesterday has tapered. No new slabs observed today.

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