Bulletin d’avalanche

Jasper

Mar 9 – 10, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

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

Wind slabs have not developed as quickly as anticipated but isolated pockets of wind slab are still a concern.

Cornices have grown large and deserve a wide safety margin.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Be on the lookout for reverse loading due to Northerly wind. Wind slabs may be forming in abnormal locations.

Weather Forecast

Wed: Sunny with cloudy periods. No precipitation. Alpine high -15 C. Wind NW 10-25 km/h

Thursday: Mix of sun and cloud. No precipitation. Alpine high -12. Wind light gusting to 35km/h

Friday: Mainly cloudy with isolated flurries. Trace precipitation. Wind SW 20-40km/h.

Snowpack Summary

Moderate NW wind is redistributing surface snow & forming fresh wind slab in exposed alpine terrain. A crust down 25-40cm is decomposing but can still be found below 2300m on south aspects. A widespread weak facet layer still lurks at the bottom of the snowpack in all areas

Avalanche Summary

A natural size 2 wind slab was reported on the West aspect of Mt.Wilson. Estimated date March 6-7.

A natural size 2 cornice failure was reported on Mt. Wilcox. Estimated date March 7.

Confidence

Régions couvertes