Bulletin d’avalanche

South Coast Inland

Mar 10 – 11, 2019Avalanche Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

A storm is approaching from the north and will form fresh wind slabs at higher elevations.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5
    Fresh slabs will form at higher elevations as snow accumulates throughout the day. Forecast snowfall amounts are variable, so pay attention to how much it snows in your local area.

Confidence

Moderate - Timing of incoming weather systems is uncertain

Weather Forecast

SUNDAY NIGHT: Increasing cloud overnight, 30-50 km/h southwest wind, alpine temperatures drop to -8 C.MONDAY: Storm approaches from the north with 5-15 cm of snow by the evening in northern parts of the region, less in the south, 40-70 km/h southwest wind, alpine high temperatures -5 C, freezing level 800 m.TUESDAY: Snow continues throughout the day with total accumulation of 15-30 cm over the course of the storm, 20-30 km/h northwest wind, alpine high temperatures near -5 C, freezing level 1000 m.WEDNESDAY: Cloudy with isolated flurries then clearing in the afternoon, light northwest wind, alpine high temperatures near -5 C, freezing level 1200 m.

Avalanche Summary

Over the past few days, a few small (size 1) loose and slab avalanches were triggered naturally and by skiers within recent storm snow. On Saturday, one size 2 wind slab avalanche was triggered by a skier north of Pemberton. The avalanche occurred on a southwest aspect at 1850 m.

Snowpack Summary

New snow will accumulate above 10 to 15 cm of recent snow. Strong southwest wind will likely form drifts and wind slabs in exposed areas. Beneath this recent snow you may find hard wind-affected snow at higher elevations, soft and faceted snow in shaded and sheltered areas, and melt-freeze crusts on southerly slopes. The middle and lower snowpack is generally well-settled.

Régions couvertes