Avalanche forecast

Banff Yoho Kootenay

Mar 14 – 16, 2012Parks Canada
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Avalanche danger

Fri
Sat
Alpine
4 · High
Treeline
3 · Considerable
Below
3 · Considerable
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Highlights

Light to moderate snow fall amounts along with strong alpine winds are forecasted for Thursday. Friday will see a cooling trend and light flurries.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Up to 30 cm recent storm snow coupled with strong westerly winds have created soft and hard slabs in the alpine. These slabs are reactive to skier triggering and may step down to the deeper surface hoar layer resulting in a very large avalanche.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    2–3
    The Valentine surface hoar is now down 70-120 cm. Natural activity with this layer is subsiding, however, it is still prime for human triggering. This layer is producing moderate shears in test pits.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Thursday

Regions covered