Avalanche forecast

Jasper

Dec 12 – 13, 2011Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

The snowpack is stabilizing however now is not the time to be venturing onto or under big steep slopes.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    There is a veneer of wind slab on lee slopes ranging from soft slab to hard slab and sastrugi. Human triggering is possible which may then step down to the basal facet layer resulting in a large full path avalanche.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    The slabs above the basal facets can be triggered where the snowpack is shallow and along the edges of deeper slopes.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number of field observations

Regions covered