Bulletin d’avalanche

Northwest Inland

Nov 27 – 28, 2015Avalanche Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

Sun
Mon
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
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Points saillants

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Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–4
    Wind slabs may be lurking near, or well below, ridge crests. Conditions are highly variable, so be alert to hollow, drummy sounds and changes in the feel of the snow as you travel.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Unusually warm alpine temperatures may weaken surface snow and lead to loose wet avalanches.

Confidence

Fair - Due to the number of field observations

Weather Forecast

It is expected to remain clear and dry through to Monday, with valley cloud developing on Sunday. A layer of warm air aloft is driving temperatures above zero at alpine elevations. For more details check out avalanche.ca/weather

Avalanche Summary

Naturally triggered loose wet avalanches were observed in sunny rock outcrops. Glide slabs are also active on a variety of aspects.

Snowpack Summary

So far, we only have limited information from the field. Initial reports suggest that there is little snow below treeline. Recent outflow winds have created variable wind slabs and crusts at higher elevations. In some places, wind slabs may overlie a crust, surface hoar or facets. A persistent weak layer exists at the base of the snowpack in the north of the region, however I am not sure how widespread this is.Unusually warm temperatures are weakening surface snow layers.

Régions couvertes