Bulletin d’avalanche

Banff Yoho Kootenay

Dec 9 – 10, 2013Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Cold temperatures continue to be the major factor affecting the snowpack. Overall the snowpack is relatively weak and shallow with deep basal facets. Early season hazards such as stumps and rocks are near the surface and careful travel is advised.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    In the alpine some small wind slabs from previous strong winds may be present.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    The main weaknesses in the snowpack continue to be the basal facets and the October 27th melt freeze crust. No recent failures on these layers have been observed however the potential for full depth releases still exists in some alpine locations.

Weather Forecast

The cold temperatures are beginning to moderate however they remain in the low teens for the next couple of days with Moderate NW winds.  A few more clouds and some light flurries are expected by Tuesday but still little in the way of snow accumulation.

Snowpack Summary

The snowpack is generally weak, facetted and shallow with little recent changes due to the cold temperatures. 60-70cm of snow exists at tree line.

Avalanche Summary

No new avalanche activity observed in the last several days.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes