Bulletin d’avalanche

Jasper

Jan 27 – 28, 2017Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

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

Ice climbing conditions are the best in years.  You will need to travel to the BC interior for good skiing. No change expected until significant change in weather.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–3
    Big open alpine features, especially with a solar aspect, should be avoided.  Recent natural avalanche activity on these slopes is expected to continue. 

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    The weak lower snowpack is susceptible to triggering.

Weather Forecast

Warming daytime temperatures into the weekend with light flurries possible on Sunday (rain showers in valley bottom).  The forecasted weather will have little effect on the snowpack.

Snowpack Summary

Snowpack is very unpredictable. Shallow wind slabs are weakening and failing on solar aspects in the alpine. Exposed features treeline and above have been scoured to ground. Settling and distribution of previous storm snow overlies facets and basal weakness.

Avalanche Summary

Large slab avalanches to size 3 on open solar aspects in the alpine.

Confidence

Due to the number and quality of field observations on Friday

Régions couvertes