Boletín de aludes

Jasper

Mar 22 – 23, 2012Parks Canada
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Archivado · caducó 15 years ago

Peligro de aludes

Sat
Sun
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Lo esencial

A skier remotely triggered a size 3 avalanche today in the Portal creek drainage from 300m away, deep instabilities remain in the snowpack.

Problemas de aludes

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–4
    The buried surface hoar layer remains a concern in areas that have not recently avalanched. Variable winds have made judging bridging strength/depth a difficult task. Solar effect will weaken the bridging effect of the slab on exposed slopes.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    Recent mod-strong alpine winds have formed slabs and large cornices on lee slopes. Cornices anchors are weakened by solar radiation, especially along rocky, wind-exposed ridges. Cornice failure and windslab avalanches may trigger deeper layers.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Surface snow is responding to the strong solar radiation effect that happens in March and April. Ice climbers should also be wary of large pillows of snow still overhanging routes on solar aspects.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain

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