Avalanche forecast

Banff Yoho Kootenay

Jan 27 – 28, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Parks Canada will be conducting avalanche control on Mt's Bosworth, Stephen, and Dennis tomorrow, Jan 27. No skiing or climbing in these areas.Field observations today saw strong W/SW winds redistributing snow in the alpine and at treeline.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2
    At treeline 30-50 cm of settled storm snow sits overtop of the Jan 20 facet interface. Where the wind has created soft slabs this layer is touchy and reactive to skier triggering. Immediate lees of ridges above treeline are the areas of most concern.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    In most parts of the forecast area a settled midpack overlies a weak facetted base. Be aware of steep shallow snowpack areas where the likelihood of triggering these basal facets is highest. The basal facets are still reactive east of the Divide.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regions covered