Bulletin d’avalanche

South Rockies

Jan 13 – 14, 2015Avalanche Canada
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Archivé · expiré 12 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Wind slabs may be found on a variety of slopes following recent changes in wind direction.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–4
    A buried persistent weakness, down 30-70 cm, should remain on your radar as it has the potential to produce large avalanches.

Confidence

Fair

Weather Forecast

A layer of warm air aloft will create warm alpine temperatures. Light amounts of precipitation are expected on Friday. SW winds strengthen on Thursday and become strong to gale by Friday.

Avalanche Summary

No recent avalanches have been reported over the last couple of days. On Saturday, skiers remotely triggered a size 1.5 slab on a south-facing slope near Harvey Pass.

Snowpack Summary

A dusting of new snow may overlie a melt-freeze crust which exists below treeline and on south-facing slopes. In upper elevation terrain, these modest accumulations overlie hard, stubborn wind slabs. Up to 75 cm below the surface you may find a hard, thick crust which was buried in mid-December. This crust has overlying facets and/or surface hoar. This layer seems variably reactive throughout the region. In areas where the overlying slab is thick and cohesive, large avalanches are possible at this interface. A crust/facet combo which formed in November seems to have gone dormant for the time being.

Régions couvertes