Avalanche forecast

Banff Yoho Kootenay

Mar 25 – 26, 2013Parks Canada
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Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Solar effects will be a concern. Start early and get out from under sun exposed slopes before they melt. Cornices deserve respect.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    The windslabs seem to have mainly settled, but smaller avalanches with high consequence are still possible in steep open terrain.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    There have been a number of cornice falls observed over the last week, some triggering deep storm slabs beneath. Be aware of what is above you.�

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    In shallow snowpack areas, particularly east of the divide, whumphing is showiing that remote triggering or triggering is still a possibility. Lower angle well supported slopes are the best terrain choice.

Weather Forecast

Another clear day with warming temps, possible clouds in the afternoon followed by another clear day.

Snowpack Summary

The snowpack is mostly stable except for isolated wind slabs and solar effects on southerly aspects with daytime heating. Cornices are still a concern and cornice falls have triggered some deep slabs in the last week. Weaker shallow snowpack areas should still be treated with caution.

Avalanche Summary

A few size 1-2 avalanches have been running out of steep solar aspects with the effects of daytime heating. As recently as 2 days ago cornice falls were triggering deep slabs on easterly aspects.

Confidence

Regions covered