Avalanche forecast

Jasper

Jan 1 – 2, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

SE slopes and features that have been loaded by recent winds have developed dangerous slab conditions.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Variable strength windslabs continue to develop from moderate NW winds. These slabs have not yet proven to be reactive. Continued loading and/or rapid temperature changes or exposure to the sun will wake this layer up.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    The storm dropped up to 60 cm of snow since Tuesday. The snow is now settling into slabs that will become more touchy as wind and settlement occurs.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–4
    Heavy loads (large explosives) were able to trigger this layer proving the hidden danger of this weakness. Full path avalanches are possible. Likely triggers will be from shallow areas.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable on Sunday

Regions covered