Avalanche forecast

Banff Yoho Kootenay

Jan 18 – 19, 2012Parks Canada
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Avalanche danger

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

Cool temperatures will persist until Friday, but the weekend should bring more seasonable weather. Some light snowfall will begin on Friday and into the weekend. The avalanche hazard is not expected to change much over the next few days.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Strong valley bottom winds from the east and moderate south westerly winds in the alpine have created soft slabs in immediate lee terrain. Cool temps should break these slabs down, but for the short term be wary of lee terrain in open areas.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    A well settled midpack overrides a weaker facetted base. This weak base is found most places except the west side of the divide. Beware of steep shallow snowpack areas (where the likelihood of triggering this basal layer is highest).

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regions covered