Bulletin d’avalanche

Jasper

Dec 26 – 27, 2016Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

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

Scoured alpine terrain may push eager skiers into loaded gullies and lee terrain where the possibility of triggering windslabs exists. The Jasper Visitor Safety team wishes everybody a safe and happy holiday season!

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Strong winds have created a mosaic of snow depths across the landscape. These slabs will vary greatly in their triggering sensitivity requiring each slope to be evaluated carefully.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    The depth of this crust is now highly variable, and may be as deep as 1m in lee areas that have received significant loading due to strong SW winds. Careful evaluation of this interface is essential.

Weather Forecast

Light snowfall amounts, gradual rise in temperature and light winds from the SW forecasted for Monday, with an Alpine high of -15. Light scattered flurries and seasonal temps to wrap up 2016. 

Snowpack Summary

Up to 15cm of settling storm snow may be found in sheltered areas. Previous strong winds have built slabs in lee features and cross loaded gullies. Weak layers include; buried surface hoar (Dec 11) in sheltered NE aspects around treeline (2100-2300m) and the Nov 12 crust approximately 30cm from the ground.

Avalanche Summary

No new reports or observations in the past 24 hours on road patrols in the Maligne Valley and Columbia Icefield Area.

Confidence

Régions couvertes