Avalanche forecast

Jasper

Apr 8 – 9, 2016Parks Canada
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Archived · expired 10 years ago

Avalanche danger

Sun
Mon
Alpine
No rating
Treeline
No rating
Below
No rating
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Highlights

Plan to travel early and be off big slopes by early afternoon. 

Avalanche problems

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Cornice failures is possible.  Avoid slopes with cornices overhead.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Will still be an issue on south facing slopes.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4
    Cool temperatures over the weekend will reduce this problem but caution advised on slopes if hot sunny conditions are experienced.

Weather Forecast

A typical diurnal pattern is expected through the weekend with late afternoon freezing level limited to 2250m. A cooler day expected on Saturday with light winds and a mix of sun and clouds. Similar conditions on Sunday. Should be a beautiful weekend!

Snowpack Summary

A strong melt freeze crust will form Friday night after a very warm day. This crust will bridge a weak and isothermal snowpack on most tree-line and alpine slopes. This crust will break down with increasing temperatures and solar input. A persistent slab, 30 to 70cms thick, will be of greatest concern on Northerly aspects.

Avalanche Summary

No new avalanches observed at time of bulletin (15:30 hrs) but expecting continued solar and temperature triggered avalanches on all aspects and elevations.

Confidence

Regions covered