Bulletin d’avalanche

Northwest Coastal

Jan 28 – 29, 2014Avalanche Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

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

Some thin new wind slabs are expected to develop with the forecast new snow. New snow is not expected to bond well to the old hard surface where surface hoar and/or facets exist.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    4–7
    Deeply buried weak facetted crystals continue to be a concern on slopes with a shallow snowpack.

Confidence

Fair - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

Overnight and Wednesday: Overcast with moderate Westerly winds overnight and 3-5 cm of snow above about 700 metres. The freezing level is expected to continue to drop during the day as light flurries continue.Thursday: A few more cm of snow are forecast for the morning before the winds shift to the Northeast and colder arctic air enters the region.Friday: Mostly clear with moderate Northerly winds and freezing levels at valley bottoms. Alpine temperatures around -15.

Avalanche Summary

No new avalanches reported.

Snowpack Summary

Below freezing temperatures have developed a solid melt-freeze crust at all elevations and on most aspects. Some dry facetted snow may exist on sheltered North aspects. New surface hoar has been reported on slopes that are sheltered from the sun at and below treeline.  A well settled mid and lower snowpack may rest on basal facets, especially in thin snowpack areas at higher elevations.

Régions couvertes