Bulletin d’avalanche

Glacier

Feb 7 – 8, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

Tue
Wed
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré

Points saillants

Extreme winds and snow forecasted for Monday will likely keep you out of the alpine and enjoying the quality tree skiing on polar aspects.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2.5

    Strong-extreme Westerly winds and new snow forecasted for Monday will likely form fresh wind slabs in the alpine and down into tree line. Evaluate wind loaded areas carefully.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3

    The Jan 29th interface (surface hoar 5-15mm in sheltered areas, sun crust on steep solar) is buried up to 80cm deep and is possible to trigger on open slopes without previous avalanche activity.

  • Loose Dry

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

    Expect loose dry avalanches in steep terrain that is sheltered from the wind. These have the potential to step down to the Jan 29 interface and gain significant mass.

Weather Forecast

Strong to extreme (30-85km/hr) Westerly winds forecasted for Monday as a Pacific Party front plows its way into our region, delivering another 10-15cm as it passes through. Temperatures will gradually drop with an alpine high of -6 and a freezing level of 1200m. Winds easing off slightly on Tuesday and temperatures rising again on Wednesday.

Snowpack Summary

On Sunday, a new sun crust formed on steep solar aspects and will be buried by the incoming snow. Wind slabs exist in some locations in the alpine and down into tree line. The Jan 29 interface (surface hoar 5-15mm in sheltered areas and sun crust on steep solar) is buried 50-80cm. The Dec 1 crust/facet combo is down 1.5-2.5m.

Avalanche Summary

Numerous sz 1-1.5 and several sz 2-2.5 point release avalanches on Sunday out of steep, rocky, sun exposed terrain. As well as a skier triggered sz 1.5 storm slab in the Pearly Rock area from a thin, rocky area.

A skier controlled size 2.0 storm slab in the Hospital Bowl area on Saturday, 20-40cm deep, 20m wide and running ~100m. 

Confidence

Régions couvertes