Bulletin d’avalanche

Northwest Inland

Jan 12 – 13, 2013Avalanche Canada
Voir sur la carte
Archivé · expiré 14 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Ouvrir la carte complète

Points saillants

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Be alert for wind slabs behind terrain breaks such as ridges, ribs and gully walls.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–5
    A deeply buried facet/crust weakness exists near the base of the snowpack. This layer could be triggered by large loads such as a cornice collapse or from a thin-spot trigger point.

Confidence

Poor - Due to limited field observations

Weather Forecast

Sunday: Light to moderate NW wind. Alpine temperature near -3. Light snow.Monday: Moderate NW wind. Alpine temperature near -1. Light snow.Tuesday: Moderate SW wind. Alpine temperature near -3. Light to moderate snow.

Avalanche Summary

No avalanches have been reported recently.

Snowpack Summary

Up to 25 cm of recent snow is sitting over a weak, faceted old snow surface. Loose dry sluffing is likely in steep terrain sheltered from the wind. In wind-affected areas, wind slabs have formed behind terrain breaks such as ridges and ribs. A strong mid-pack overlies a weak base layer of facets and the remnants of a crust. New surface hoar growth at the surface may develop into a weak layer once buried with further snowfall.

Régions couvertes