Bulletin d’avalanche

Jasper

Jan 14 – 15, 2017Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

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

Supportive skiing can still be found in well sheltered areas at TL and below.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Variable winds have created a complex situation of cross and, reverse loaded features through the region. Stripped ribs, ridge-tops, and open features threaten to push users into areas where the snow is over-loaded and created layered wind-slabs.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    The faceted snowpack continues to lose cohesion and release loose dry avalanches from steep terrain. This is concerning for ice-climbers and skiers in confined/exposed terrain.

Weather Forecast

Broken skies forecasted for Saturday. Progressive warming over the day and continuing thought the weekend. High's expected to be near -10 in the Icefields area.

Snowpack Summary

A layered, complex, shallow, faceted and weak snowpack. Multiple surface and buried wind slabs overlying a variety of faceted weaknesses to ground. Forecasters backed off a small alpine feature today due to a noticeable change in surface tension and hard hollow sounding wind slab. 

Avalanche Summary

A few loose slides observed from steep terrain today. Size 2 shallow wind-slab from the alpine (2600m, SW aspect) on a loaded rib feature on Boundary Peak

Confidence

Intensity of incoming weather systems is uncertain on Monday

Régions couvertes