Avalanche forecast

Kananaskis

Dec 26 – 27, 2018Alberta Parks
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Archived · expired 8 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
1 · Low
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Highlights

Weak layers in the snowpack are not healing. Conservative route choices are required.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1.5–3
    Slabs are everywhere in lee and cross-loaded terrain in the Alpine and open areas at Treeline. These slabs are very sensitive to human-triggering in steep and unsupported terrain.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1.5–3
    The basal layers are very weak. An avalanche initiated in the upper snowpack could step down to the bottom of the snowpack.

Confidence

High -

Weather Forecast

Thursday should bring trace amounts of snowfall with light winds and ridge-top temperatures between -10 and -20. Friday will be much the same with slightly warmer temperatures.

Avalanche Summary

No new avalanches observed today.

Snowpack Summary

Wind slabs are widespread in the Alpine and at Treeline in lee and cross-loaded terrain. The Dec 10th surface hoar/facet interface is prominent throughout the forecast area and continues to produce easy to moderate shears down 40 to 60cm. The basal layers are very weak and facetted, with occasional ski penetration to ground when you leave the up-track.

Regions covered