Bulletin d’avalanche

South Coast

Dec 10 – 11, 2011Avalanche Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Mon
Tue
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Wind slabs may be lurking below ridge crests and in cross-loaded gullies.

Confidence

Fair - Intensity of incoming weather is uncertain on Tuesday

Weather Forecast

Sunday's forecast calls for mostly sunny skies and light northerly winds.On monday expect increasing cloud in the afternoon, trace amounts of precipitation and moderate westerly winds.On tuesday moderate snowfall will occur throughout the day with moderate to strong southwest winds.Freezing levels are expected to sit at valley bottom throughout the forecast period.

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

5cm of snow fell in the Coquihalla a few nights ago and has buried a thick layer of surface hoar on most sheltered and shady slopes, but no new snow further north means it's still on the surface. This surface hoar may be sitting on a crust in sun and wind exposed areas making it especially touchy as soon as a sufficiently deep and cohesive slab forms. The thick rain crust from last weekend extends up to 1800m and is buried by 10-15cm of faceted snow. Snow pack depths and surface condition are highly variable in wind-exposed areas. Surface hoar buried 70 cms below the surface has been gaining strength, and just off the ground facets have been doing the same.

Régions couvertes