Avalanche forecast

Banff Yoho Kootenay

Jan 19 – 20, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

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

Observations of several large avalanches in the last 48 hrs from very steep alpine terrain indicate the possibility of a basal release still exists. A gradual warming trend with precip and stronger winds for Sat. will increase hazard for the weekend

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Thin windslabs exist at treeline and in the alpine. These will facet out with the forecasted cold temperatures, but may be triggerable by riders in the next few days. An avalanche on this layer may be enough to step down to the basal facets.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    Cold temperatures are facetting a well settled midpack which overrides a weaker facetted base. This weak base is found most places except the west side of the divide. Many thin spots exist in the alpine and treeline due to previous strong winds

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Regions covered