Bulletin d’avalanche

Banff Yoho Kootenay

Nov 29 – 30, 2013Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Ice climbing conditions are generally good. Ski conditions are less than ideal until we get more snow. There may be an increase in hazard this weekend with an incoming system. SH

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    We have seen less activity over the last few days. Be cautious around areas that have wind slabs over facets or the Oct. crust, especially in steeper, shallow terrain.

Weather Forecast

Very light snow Friday with light to moderate westerly alpine winds.  Freezing levels to valley bottom.  Snow is still forecast for Sunday, but we'll see how much we really end up with.

Snowpack Summary

On lee features in the alpine the snowpack consists of wind slabs over a weak mid-pack with a very weak base of facets. The Oct 27 crust on N-NE aspects is breaking down, but is still a sliding layer near ground. On average at treeline there is 70 cm of snow, barely blanketing the rocks and stumps.

Avalanche Summary

No new avalanche activity over the last 24 hours.

Confidence

Due to the quality of field observations on Thursday

Régions couvertes