Avalanche forecast

Banff Yoho Kootenay

Nov 17 – 18, 2011Parks Canada
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Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Easily triggered avalanches up to size 1.5 have been observed in the last 48 hrs by backcountry skiers and ski hill avalanche workers. Open steep terrain with wind loading should be carefully evaluated or avoided. JBW

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Steep open slopes at and above treeline have a soft to hard wind slab that is sensitive to human triggering and is failing near the ground on the basal depth hoar. In some places, this layer is failing on a surface hoar layer and then stepping down.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regions covered