Bulletin d’avalanche

Jasper

Mar 29 – 30, 2021
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Archivé · expiré 6 years ago

Danger d’avalanche

Wed
Thu
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Back to winter conditions for a short period, freezing levels and temperatures will rise again on Wednesday.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3

    Recently formed wind slabs can be found in lee features near ridge crests, and in cross-loaded gullies.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3

    When in the Whistlers/Portal and Maligne regions identify and to assess the bond at this mid-pack layer.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2

    New snow instability will heal with time, careful in steep and confined terrain

Weather Forecast

Partly cloudy skies, moderate NW ridgetop winds with freezing levels at valley bottom are forecasted for Tuesday. A few flurries with freezing levels rising to 1700m on Wednesday.

Snowpack Summary

Varied snowfall through the region. Up to 20cm settled HN in the Icefields Area. This new snow overlies previous surfaces such as hard windslab and variable crusts at TL/ALP elevations. The snow pack varies throughout the region from strong supportive snow in deeper areas to weak facetted snow in the shallow areas.

Avalanche Summary

Numerous loose dry avalanches from extreme terrain, west aspect, sz. 2-2.5 in the Weeping Wall / Mount Wilson Area.

Several windslabs, south to west aspects, sz 2-3 in the Icefields Area.

Confidence

Freezing levels are uncertain on Wednesday

Régions couvertes