Avalanche forecast

Jasper

Apr 1 – 2, 2015Parks Canada
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Archived · expired 12 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Tuesday's storm dumped 20 cm of snow around the Marmot area and less in other areas.  Bigger avalanches can be expected on slopes in the Northern portion of the forecast area.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2
    Windslabs can be found on lee aspects and cross loaded features at treeline and above. 

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3
    Large cornices or surface avalanches are the likely trigger for this deep persistent weak layer.

Weather Forecast

Seasonal temperatures and good overnight recovery through the week with partly sunny skies and little precipitation.  A system coming in on the weekend may bring 20 cm.  A nice Easter present!!!

Snowpack Summary

Up 20 cm storm snow fell around Marmot on Tuesday, less in other areas of the Park.  Mod to Strong winds SW winds at Alpine and Treeline have created thick windslabs on a temperature crust that can be found on all aspects up to 2500m. A weak basal facet layer is present in most areas at treeline and above. Large cornices exist at ridge line.

Avalanche Summary

No avalanche patrol today.  No new avalanches reported in the forecast area.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Saturday

Regions covered