Bulletin d’avalanche

South Coast Inland

Mar 12 – 13, 2019Avalanche Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

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

Watch for wind slabs and sun-affected slopes, both of which may be found on south-facing slopes.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Winds shifted to the north at the tail end of the storm, potentially building wind slabs on south-facing slopes in exposed areas. Watch also for the potential for slab avalanches on sun-affected slopes.

Confidence

High -

Weather Forecast

TUESDAY NIGHT: Flurries possible. No significant accumulation expected.WEDNESDAY: Dry with a mix of sun and cloud. Freezing level around 1200 m. Winds light northwesterly.THURSDAY: Flurries. Freezing level around 1300 m. Winds light southwesterly.FRIDAY: Dry with a mix of sun and cloud. Freezing level rising to around 1600 m. Winds light southwesterly.

Avalanche Summary

Several size 1-1.5 loose dry avalanches were reported over the weekend. See this MIN report for an example here. On Saturday, a 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

8-15 cm new snow fell on Monday night, with highest amounts recorded along the Duffey. Winds shifted to the north during the storm, potentially creating some unusual wind slabs on south-facing slopes. 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