Avalanche forecast

Jasper

Dec 28 – 29, 2019Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Constant SW moderate winds have created windslabs that are ripe for human triggering.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2.5

    The first bit of wind after the storm on Dec 21, fresh wind slabs were noted building today

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    Caution Ice climbers in confined features with steep walls holding dry loose snow

Weather Forecast

The weekend will bring cloudy and sunny periods and a slight warming trend. Day time highs of -5 on sunday. No precipitation expected over the weekend, The winds will continue into Saturday in the moderate westerly range tapering off for Sunday.

CAA's Mountain Weather Forecast for more specific details

Snowpack Summary

6-20mm Surface Hoar growing up to 2200m. Consistent Moderate SW winds for the past 36 hours have created wind slabs in lee features. This overlies a mosaic of buried wind slabs and facetted weak layers. Basal layers continue to develop into larger facets and depth hoar.

Avalanche Summary

Several wind slabs to Size 2 noted in immediate Lee features Treeline and above.

Confidence

Regions covered