Avalanche forecast

Jasper

Mar 6 – 7, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Tue
Wed
Alpine
4 · High
Treeline
4 · High
Below
3 · Considerable
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Highlights

Highway 93 and Maligne Lake Road closed. Avalanche control Tuesday with expected re-opening Wednesday.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Very Likely
    Size
    2–4
    Open slopes on Northeast to South aspects have slabs that are sitting on surface hoar 20-60cm down. On southerly aspects, the surface hoar formed on a sun crust, increasing the possibility of remote triggering and wide propagations.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Certain
    Size
    2–4
    Heavy snow and moderate to strong SW winds is expected to continue through the evening. A widespread wind/storm slab condition is producing large natural avalanches, especially in the alpine. Avoid all avalanche terrain.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain

Regions covered