Avalanche forecast

Kananaskis

Nov 11 – 12, 2019Alberta Parks
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Archived · expired 7 years ago

Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
No rating
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Highlights

Wind slabs are forming in the Alpine and open areas. Below treeline is still challenging travel due to minimal snow.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Be on the lookout for wind slab, especially in gullies and lee features.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    The recent snow is not bonding to the underlying crust. Ice climbers in particular should be aware of their exposure to overhead terrain and terrain traps.

Confidence

Moderate -

Weather Forecast

Tuesday will have mostly flurries that will end Wednesday morning.  Winds will continue to be moderate to strong from the West and diminishing Wednesday afternoon.  Temperatures in the Alpine for Tuesday will be have highs around -7c and lows around -15c.

Avalanche Summary

One size 2 slab avalanche was observed on a North aspect of Mt. Murray.

Snowpack Summary

The rain and wet snow that occurred on Friday has squished the snowpack and formed a crust up to 5cm thick at Treeline and below. The recent 10-15cm of snow fell very cold and dry and has a poor bond to this crust.  Winds on Monday have started to move the snow around creating drifting in open areas.  These winds are forecast to continue into Wednesday morning, moving more snow into lee features.  Expect to find wind slabs in lee features, gullies and some open areas.  The snowpack at treeline has an average of 50-80cm, while lower elevations are below threshold for avalanche activity.

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