Avalanche forecast

Kananaskis

Feb 20 – 21, 2018Alberta Parks
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Archived · expired 9 years ago

Avalanche danger

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

Wind slabs are still the concern for  human triggering in the alpine and isolated areas at tree line.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2.5
    Widepsread windslabs in Alpine terrain and more variable at treeline locations.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3.5
    This layer is down approximately 150cm.

Confidence

-

Weather Forecast

Wednesday is to bring a mix of sun and cloud and an alpine temperature of -20c with west winds of 25km/h.

Avalanche Summary

No new avalanche activity was observed.

Snowpack Summary

The alpine has extensive wind slabs covered with  5-10cm of recent snow.  The skiing has been slow with the cold temperatures.  At tree line, some drainages have wind effect and others do not.  The wind slabs are still a concern for human triggering.  The weaker persistent layer known as the December 15 facets is approximately 150cm down and if triggered will produce very large avalanches.

Regions covered