Bulletin d’avalanche

Jasper

Dec 25 – 26, 2011Parks Canada
Voir sur la carte
Archivé · expiré 15 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Ouvrir la carte complète

Points saillants

Freezing level to hover around 1500m until Sunday afternoon with possible 10-15cm and strong winds as the front passes followed by colder temperatures. Winds were clocked up to 110km/hr at the Icefields now gusting 50-60km/hr. Can you say sustrugi.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    110km/hr winds have wind-hammered the alpine at the icefields. Boilerplate windslabs, sustrugi, and loaded lee slopes will be encountered. Wind direction is variable but mainly slabs will be present on easterly aspects. Avoid slabby feeling slopes.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Basal facet collapses are still possible and should remain a real concern as consequences would be huge if triggered. Shallow snowpack areas and rocky outcrops are trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Régions couvertes