Avalanche forecast

Jasper

Feb 13 – 14, 2017Parks Canada
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Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
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Highlights

Avalanche control is planned for the Icefields Parkway and Maligne Lake Road on Monday.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Extreme SW winds building windslab with recent storm snow.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Avalanches initiated within the storm snow may step down to deeper layers and in some cases gouging to ground in thin snowpack areas.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    30-40cm of storm snow has formed a touchy storm slab.

Weather Forecast

Winds easing to light on Monday with clear skies and alpine temperatures approaching 0.  Warm daytime temperatures continuing until the middle of the week then maybe some valley bottom rain showers???

Snowpack Summary

Extreme winds building windslab likely down slope of ridge-lines and on cross-loaded gulley features. A reactive storm slab can be found in sheltered locations at tree-line and on most slopes below tree-line. The new slabs and storm snow is sitting on several touchy surface hoar and facet layers over a weak base.

Avalanche Summary

Several avalanches to size 2 were observed on west facing cross-loaded features in the alpine today.

Confidence

on Monday

Regions covered