Bulletin d’avalanche

Northwest Inland

Dec 14, 2016Avalanche Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Lingering wind slabs remain the primary concern and may be present on a variety of aspects.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Lingering wind slabs may remain reactive to human triggers for several days after the winds die down. Wind slabs may be present on many aspects and elevations due to very strong and highly variable wind directions.

Confidence

Moderate - Due to the number of field observations

Weather Forecast

Wednesday: Sunny / Light northeasterly winds / Average temperature at treeline -10 C.Thursday: Sunny / Light to moderate northeasterly winds / Average temperature at treeline -18 C.Friday: Mix of sun and cloud / Light northwesterly winds / Average temperature at treeline -15 C.

Avalanche Summary

No recent avalanches have been reported in this region.

Snowpack Summary

Clear skies and strong outflow winds have created a variety of snow surfaces including scouring and hard wind slabs in exposed areas and surface hoar formation in sheltered areas. Recent winds have blown from many directions, most recently from the east. As a result, wind slabs may exist on a wide variety aspects. According to reports near Smithers, there is a layer of surface hoar down 40-50 cm, though no recent activity has been reported on this layer. A thick rain crust that formed in early November is now buried 50-60 cm deep. Early season snowpack observations are still very limited in the region, but reports suggest the average snowpack depth is 50-90 cm at treeline and 120 cm or greater in the alpine.

Régions couvertes