Avalanche forecast

Banff Yoho Kootenay

Feb 20 – 21, 2012Parks 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

Some areas within the forecast region are now reaching threshold amounts of new snow where the Valentine's layer is now becoming active, bumping us up to Considerable. 17 new at Sunshine last night! Another system on the horizon for Wednesday.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    W. of the divide & Sunshine slack country, this layer is now touchy in immediate lees (20-50 cm thick). Size 1 skier remote's & accidental around Sunshine today. With forecasted mod. NW wind tonight, this layer will be even more touchy tomorrow.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1
    In steep areas mainly West of the divide, watch out for new snow sloughing on surface hoar, facets or suncrust on steep solar aspects. This will increase with solar radiation tomorrow afternoon or with increased winds on Tuesday.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regions covered