Boletín de aludes

Banff Yoho Kootenay

Mar 23 – 24, 2013Parks Canada
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Archivado · caducó 14 years ago

Peligro de aludes

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

Many bold tracks have shown that not all slopes are avalanche prone. The conditions are tricky. Do not let the presence of other tracks dissuade you from a conservative fun day. JBW

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    New windslabs have formed on lee aspects, much thicker West of the divide where more new snow has fallen.

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath. Be aware of what is above you. 

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Watch out for thin areas especially East of the divide where it is possible to trigger or remote trigger deep slabs on basal facets or crusts.� Be conservative with terrain choices in bigger terrain.

Weather Forecast

Another sunny day under a ridge of high pressure will be followed by a weak front and a few clouds Monday.

Snowpack Summary

There is a great variation between the east and west in the forecast district. East of the divide, the lower snowpack is weak facets and collapsing of this layer is causing remote triggering of avalanches with wide propagations. On southerly aspects these avalanches are failing on a crust while on NE aspects cornice triggers are triggering storm.

Avalanche Summary

Natural avalanches have been observed on all aspects every day for the past week, some up to size three. These avalanches are more prevalent east of the divide.

Confidence

Due to the quality of field observations

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