Bulletin d’avalanche

Banff Yoho Kootenay

Nov 1 – 9, 2023Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Fri
Sat
Alpin
Début de saison
Limite forestière
Sans niveau
Sous la limite
Sans niveau

Points saillants

Early-season conditions prevail in the high mountains. Watch out for small wind slabs in the alpine, as they can have serious consequences if triggered by ice and alpine climbers.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5

    Minimal reports from the alpine, but previous small wind slabs have been reported by ice climbers. New snow and wind may increase the likelihood of encountering and triggering these.

Confidence

Low

Avalanche Summary

Small windslabs in leeward areas in the high alpine and exposed areas at upper treeline are possible.

Snowpack Summary

Early season conditions exist in the high alpine, anywhere from 60-80cm of snow can be expected. This tapers rapidly with elevation, treeline snow depths are in the 15-30cm range.

Weather Summary

2-4cm of snow will fall East of the divide and 5-10cm West of the divide Thursday. Freezing levels will be valley bottom in all locations with SW winds 20-30kmh. Winds will increase Thursday night with a few more cm. See the Mountain Weather Forecast for more details.

Régions couvertes