Bulletin d’avalanche

Banff Yoho Kootenay

Nov 21 – 22, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

The temperature will rise late on Tues with accompanying snowfall (~15-20cm @ TL), confidence fair. Wind will remain light from SW. Danger rating will increase to CON Weds morning. Note: Surface Hoar currently on surface in isolated areas: Alp + TL.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Wind slabs between 20 and 40cm deep are lingering in leeward terrain in the alpine. Although forecasted to be small in size, wind-slabs that are triggered by riders or climbers will likely result in injury rather than burial.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    The basal facets and depth hoar layer is between 30 and 50cm deep. This layer produced whumphing in flat terrain near Sunshine Village today. Snow pack tests on this layer produced easy results. Steep open features are to be treated with caution.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Track of incoming weather systems is uncertain on Wednesday

Régions couvertes