Bulletin d’avalanche

Jasper

Nov 17 – 18, 2011Parks Canada
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Archivé · expiré 15 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

Snow warning for 15cm for Yellowhead and Hinton but not Jasper. Uncertain whether system will infiltrate into Jasper's region.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Moderate W and NW winds are slowly adding load to the slab features which have weak basal crystals. Some whumphing was observed in the Bald Hills possibly failing on surface hoar layer 25cm down. Alpine snowpack depths are variable.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3
    Soft to hard slabs up to 40cm thick can be found in gullies and lee terrain. The condition is less prevalent at Treeline. Observed a couple of size 2-3 natural avalanches scrubbing to ground in the Icefields on steep alpine features near ridgetops.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Thursday

Régions couvertes