Boletín de aludes

Kananaskis

Dec 15 – 16, 2018Alberta Parks
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Archivado · caducó 8 years ago

Peligro de aludes

Mon
Tue
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Lo esencial

New snow, strong winds and a weak base are creating ideal conditions for wind slabs.  Natural activity is slowing but conditions remain touchy for skier triggered avalanches. 

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–2.5
    Warm temps, new snow and strong winds are creating widespread skier triggerable slabs in open areas.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    There are a number of weak facet layers lurking deep in the snowpack. Be sure to dig and assess before jumping into ski terrain. Even pieces of small terrain could kick out a decent size avalanche.

Confidence

High -

Weather Forecast

Light snowfalls with moderate to strong SW winds will continue over the next few days.  Temperatures will remain above seasonal in the -5C range. 

Avalanche Summary

A few new avalanches up to sz 2.5 were observed in Alpine terrain on Saturday.  These slabs were mainly failing at the interface of the recent storm snow on N and E aspects. 

Snowpack Summary

An additional 4cm fell overnight on friday and 10cm during the day on Saturday.  Over the past 5 days 46cm of snow has fallen at treeline with warm temps and strong SW winds.  Widespread windslabs have developed and we have seen lots of cracking,  reports of whumpfing, and skier controlled avalanches on the Dec 10th surface hoar and facet interface down 40-60cm.  Recent natural avalanche have stepped down to the Oct crust with fracture depths over 1m.  The new windslabs and persistent slabs will take a few days to settle out and strenghten. 

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