Avalanche forecast

Jasper

Feb 4 – 5, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Wed
Thu
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

The Icefields Parkway and the Maligne Lake road are still closed. Check 511.alberta.ca/ for updates.

Avalanche problems

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3

    Up to 50 cm during the recent storm with Mod SW winds.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1.5–3.5

    Recent 50 cm of new snow has the potential to overload this weakness

Weather Forecast

Tuesday will be mostly cloudy and isolated flurries, trace amount of snow, -16 C, and Southwest winds 20 km/h. Wednesday will be bring 6 cm of snow, -16C, light gusting moderate westerly winds.

See Weather synopsis here: Avalanche Canada Mountain Weather Forecast

Snowpack Summary

50 cm snow arrived  in Jan 31 / Feb 1 with  strong winds and warm temperatures. The storm created thick storm slabs over the facetted midpack and weak basal facets and depth hoar.

Avalanche Summary

Considering the depth of new snow very little natural activity seen accept in the Wilson area.  Explosives work over the last 2 days produced inconsistent results.  Icefields area from size 1 to 3 with 50 to 100% cleanout.  Loose dry results up to size 2.5 from Medicine Slabs but nothing hitting the road.

Confidence

Due to the number and quality of field observations on Tuesday

Regions covered