Bulletin d’avalanche

Jasper

Dec 29 – 30, 2011Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
1 · Faible
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Points saillants

The storm that dropped over 20 cm in the Icefields area on Wednesday will slowly clear out by Thursday afternoon. Skiers and boarders should avoid steep loaded slopes to allow this new snow to settle and bond to the snow beneath it.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    These slabs have now been buried and added to by the recent storm snow and SW winds. Increased loading may increase the possibility of triggering this weakness.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    The 20 cm of snow that has fallen in the Icefields area was accompanied by strong SW winds creating slab conditions on lee slopes. It will take a few days for these new slabs to bond.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    This layer has not been active for a while now. It has now been loaded by the 20+ cm of new storm snow and continued SW winds. Big slopes that have not yet slide this winter should be avoided.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Thursday

Régions couvertes