Bulletin d’avalanche

Waterton Lakes

Dec 7 – 10, 2013Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Northeast winds during the storm have build windslabs in unusual locations. If ridgetop winds increase on Sunday as forecast more windslabs will develop.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Only on very steep slopes will there still be any sluffing.

Weather Forecast

Very cold temperatures continue for the forecast period. Although forecast winds are light, windchill is a big factor. Winds are forecast to pick up from the north on sunday.

Snowpack Summary

Little Prairie 63cm. Summit Lake = 100-120 cm . Cold temps have prevented slab development in the storm snow. Windslabs built during storm are present on reverse locations (northeast aspects) and could possibly be skier triggered. The facet/melt freeze interface from Dec 1 has also not settled out yet.

Avalanche Summary

Sluffng out of very steep terrain.

Confidence

Wind effect is extremely variable

Régions couvertes