Avalanche forecast

Jasper

Dec 21 – 22, 2011Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Wed
Thu
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Continued strong winds have left only isolated pockets of snow throughout the alpine, expect hardslabs to be present in most places where the snow remains.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Windslabs have formed in sheltered lee features at Treeline, mostly near ridge tops and protected pockets in the Alpine.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    Basal facet collapses are still being noted in test pits below midpack bridging layers. Shallow snowpack areas and rocky outcrops are likely trigger locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Regions covered