Bulletin d’avalanche

South Coast Inland

Feb 23, 2019Avalanche Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Fresh storm slabs are building at higher elevations, especially in the southern part of the region.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Fresh storm slabs are forming at upper elevations and may be reactive to human triggering.

Confidence

Moderate - Forecast snowfall amounts are uncertain on Saturday

Weather Forecast

FRIDAY NIGHT: 10-15 cm of snow in the south and 5 cm in the north, moderate southwest wind, alpine temperatures drop to -8 C.SATURDAY: Cloudy with light snowfall and accumulations of 5-10 cm, light southwest wind, alpine high temperatures around -6 C.SUNDAY: Mix of sun and cloud, light southeast wind, alpine high temperatures around -6 C.MONDAY: Mix of sun and cloud with isolated flurries, light northeast wind, alpine high temperatures around -6 C.

Avalanche Summary

On Thursday, a skier triggered slab avalanche was reported in the Duffey area on northwest aspect at 1900 m (see MIN report here). A few small (size 1) wind slabs were also observed near ridgetops, and several loose dry avalanches were were observed in steep rocky terrain.

Snowpack Summary

New snow amounts will be variable across the region on Saturday, with 15-30 cm possible in the south and 5-15 cm in the north. Deeper deposits may be found in wind-affected alpine terrain. Recent snow may sit above hard wind slabs or sun crusts. A weak layer above a crust can be found roughly 20-30 cm deep at treeline and below treeline elevations, and has produced some small slabs with low destructive potential on isolated features. The remainder of the snowpack is generally well-settled.

Régions couvertes