Avalanche forecast

Banff Yoho Kootenay

Mar 30 – 31, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

The new snow will bond quickly, but watch for touchy wind slabs in exposed areas, especially around ridge crests and slopes with buried sun crusts. 10-20cm more is expected late Saturday afternoon into Sunday morning. SH

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    10-30 cm over the last 24 hours has formed wind slabs in exposed areas. The Lake Louise area seems to have gotten the most snow, and widespread activity to sz. 2 was reported. Steep slopes with sun crust will have the poorest bond to this new snow.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    The Valentines surface hoar layer is down 70-150cm. It is harder to initiate, but as people start to venture into bigger terrain, the consequences of triggering will be large if you find the sweet spot. Thin areas will be the most susceptible.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Saturday

Regions covered