Boletín de aludes

Jasper

Mar 15 – 16, 2015Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

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

Great skiing can be found in sheltered areas above treeline.

Problemas de aludes

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Soft  slab conditions on lee alpine aspects appear to have bonded well in most locations.  Approach these features with caution and test bonding on the slope from a safe area before committing.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–4
    Large cornices or surface avalanches are the likely trigger.

Weather Forecast

Daytime temperatures will gradually rise into the week with good overnight recovery.  Light alpine and treeline SW winds can be expected.  Sunny conditions will make for inviting conditions.

Snowpack Summary

Up to 35 cm of storm snow has fallen in the alpine in the Icefields Area with rain at lower elevations.  Strong SW winds has created soft slab conditions on lee aspects. Deep persistent weaknesses (crusts and basal facets) exist at the base of the snowpack. A strong rain crust extends into treeline.

Avalanche Summary

A 2.5 slab avalanche was observed below an alpine ridge on NE aspect.  This avalanche stepped down to a crust deeper in the snowpack.  No other natural avalanches were noted today.

Confidence

Due to the number and quality of field observations on Monday

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