Bulletin d’avalanche

Banff Yoho Kootenay

Dec 16 – 17, 2014Parks Canada
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Archivé · expiré 12 years ago

Danger d’avalanche

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

Although the danger is rated as moderate by definition, steep alpine slopes that have not previously avalanched should be treated as highly suspect.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.

Weather Forecast

Clear skies and temps around -10 persist. These weather conditions will have little affect on the danger rating.

Snowpack Summary

In the alpine a few cm`s of new snow overlies widespread wind slabs created by recent strong SW winds. At treeline and above, mild temperatures have helped strengthened the upper snowpack but the basal rain crust/facets remain weak. Below treeline a rain crust is present and the moist snow is gaining strength rapidly with the cooler temps.

Avalanche Summary

No avalanches were observed or reported in the forecast region today.

Confidence

Due to the quality of field observations

Régions couvertes