Avalanche forecast

Jasper

Dec 22 – 23, 2011Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Thu
Fri
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Moderate to strong winds continued in the alpine through today but from the north; expect to encounter some reverse loading of south and east facing features at ridgecrests and tree fences.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Windslabs are present in sheltered lee features at Treeline, mostly near ridge tops and protected pockets in the Alpine. The past warm temperatures are helping them bond to older snow surfaces.

  • Deep Persistent Slabs

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

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number and quality of field observations

Regions covered