Boletín de aludes

Jasper

Mar 17 – 18, 2021
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Archivado · caducó 6 years ago

Peligro de aludes

Fri
Sat
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
2 · Moderado
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Lo esencial

Icefields Parkway will remain closed for maintenance until Thursday afternoon. Check Alberta511 for updated information.

Problemas de aludes

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1.5–3

    Cornices can be extremely destructive alone or, may initiate deeper layers in the snowpack below.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3

    More activity noted at this layer, mostly initiated by large loads (cornices) in steep terrain.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2.5

    Varied sensitivity on solar aspects, likelihood increases on the steepest slopes. It ay nbe possible to trigger deeper instabilities once initiated.

Weather Forecast

Approaching front will bring high light clouds which should filter the UV and keep the surface snow cool. Cold overnight recoveries help to maintain the structure of the snowpack. Isolated sun and clouds will mean localized areas of instability. 

Snowpack Summary

Warm temps and high solar input has created typical spring like conditions with moist snow on solar aspects from daytime heating, TL and below. Continuing SW winds have redistributed the snow pack, forming hard slabs in the ALP. The mid pack is supportive in deep areas, but shallow snowpack areas are weak and will break down fast with temp swings.

Avalanche Summary

Control operations produced several loose wet slabs on previously controlled terrain.

Confidence

Regiones cubiertas