Boletín de aludes

Jasper

Dec 17 – 18, 2014Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

Wed
Thu
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Approach loaded, cross-loaded and re-loaded lee features with caution.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    These deep persistent slabs at tree line and sheltered alpine slopes may be triggered from shallow areas within the snowpack.

Weather Forecast

No significant change expected due to light winds, seasonal temperatures and no snow forecasted. Surface hoar is developing and may become the next weak layer in the snowpack once buried.

Snowpack Summary

A strong mid-pack overlies approximately 20-40cm of facets. Compression tests have produced variable hard results at the interface between the mid-pack and facets near the ground. Isolated wind slabs still exist in open areas at tree line and alpine elevations. The deeper instabilities are most susceptible to human triggering from shallow areas.

Avalanche Summary

Natural activity has slowed down but there is plenty of evidence of large deep slides in wind loaded features that have released in the last cycle.

Confidence

The weather pattern is stable on Wednesday

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