Bulletin d’avalanche

Northwest Inland

Jan 24 – 25, 2013Avalanche Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–4
    New storm slabs and wind slabs are likely to develop during the next few days.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–6
    A deeply buried weak layer near the base of the snowpack could be triggered by large loads such as a cornice collapse or from a thin-spot trigger point.

Confidence

Fair - Timing, track, or intensity of incoming weather is uncertain for the entire period

Weather Forecast

Friday: Strong to extreme SW winds. Alpine temperature near -5. 5-15 cm snow.Saturday: Light W winds. Alpine temperature near -7. Very light snow.Sunday: Moderate SW winds. Alpine temperature near -9. 5 cm snow.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

New snow is landing on a medley of snow surfaces including hard and soft wind slabs, scoured slopes, blue ice and thin melt-freeze crusts. Winds are likely to shift snow into slabs in the lee of terrain breaks such as ridges and ribs. Surface hoar layers buried in the upper snowpack are patchy in their distribution. Recent snowpack tests recently gave generally hard to no results near Smithers. An otherwise strong mid-pack overlies a weak base layer of facets/depth hoar. The snowpack depth is around 100 cm at treeline.

Régions couvertes