Avalanche forecast

Banff Yoho Kootenay

Mar 21 – 22, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

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

Minimal new snow, light winds, and cool temperatures in the next few days will not change the danger rating. There have been multiple close calls in the last few days in thin snowpack areas - use caution! See our FB page for pictures.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Fresh wind slabs up to 50cm thick have been formed in the last 24h from strong W/SW winds. These will be sensitive to skier triggering in the lee of ridge crests.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Down 70-150cm, the Valentines surface hoar is producing harder shears and showing signs of rounding; however, several natural and skier triggered avalanches over the past few days show that this layer is still a concern.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Recent snow has covered up thin, scoured areas making them look appealing to riders. There have been multiple remote triggered avalanches in the Louise backcountry in the last two days in thin snowpack areas that have stepped down to the basal facets

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Regions covered