Bulletin d’avalanche

Jasper

Dec 28 – 29, 2019Parks Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Constant SW moderate winds have created windslabs that are ripe for human triggering.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2.5

    The first bit of wind after the storm on Dec 21, fresh wind slabs were noted building today

  • Loose Dry

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

    Caution Ice climbers in confined features with steep walls holding dry loose snow

Weather Forecast

The weekend will bring cloudy and sunny periods and a slight warming trend. Day time highs of -5 on sunday. No precipitation expected over the weekend, The winds will continue into Saturday in the moderate westerly range tapering off for Sunday.

CAA's Mountain Weather Forecast for more specific details

Snowpack Summary

6-20mm Surface Hoar growing up to 2200m. Consistent Moderate SW winds for the past 36 hours have created wind slabs in lee features. This overlies a mosaic of buried wind slabs and facetted weak layers. Basal layers continue to develop into larger facets and depth hoar.

Avalanche Summary

Several wind slabs to Size 2 noted in immediate Lee features Treeline and above.

Confidence

Régions couvertes