Bulletin d’avalanche

Banff Yoho Kootenay

Apr 24 – 25, 2014Parks Canada
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Archivé · expiré 12 years ago

Danger d’avalanche

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

Clear skies and cold temperatures produced a solid freeze last night. The same is expected for Friday if the skies clear tonight. Excellent conditions: soft powder on shaded slopes and frozen/corn snow in the sunshine below 2200m in the afternoon.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Reported in the high alpine (peaks on the Wapta), these small slabs have resulted from the new snow that fell over the past 48 hours.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    The deep, persistent weakness remains in the snowpack. This problem appears dormant until the next big warm spell, but we continue to note it's presence.

Weather Forecast

Mixed clear skies and some clouds overnight should result in another good surface freeze on the snowpack. Friday looks like a repeat of Thursday, with mixed sun and clouds and freezing levels rising to 2100 m. No new snow expected, and highs of +1 expected for Friday afternoon.

Snowpack Summary

Clear skies and overnight temperatures below freezing should result in a strong surface crust on Friday morning. This crust exists up to 2300m, above where 10cm of dry powder overlies a dry, winter snowpack. Isolated windslabs were reported in the high alpine (3000m) near ridges. Conditions are solid, but watch for deterioration in the afternoon.

Avalanche Summary

No new avalanches were observed or reported today.

Confidence

Régions couvertes