Avalanche forecast

Banff Yoho Kootenay

Dec 16 – 17, 2011Parks Canada
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Archived · expired 15 years ago

Avalanche danger

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

There is a possibility of 10-20 cm of snow over higher windward terrain with the storm coming Friday afternoon and Saturday morning, but there is some uncertainty due to variability in the models.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    There are a few fresh thin wind slabs on immediate lee features in the alpine that can be easily triggered.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    In many areas the hard wind slab on wind loaded features is bridging the weak facets and depth hoar at the base. There is still a possibility of human triggering a large full depth avalanche on any steep slope.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Regions covered