Avalanche forecast

Jasper

Jan 10 – 11, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Human triggered avalanches are likely. Choose the terrain you enter wisely.

Avalanche problems

  • Wind Slabs

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

    Avalanche activity related to wind slabs will taper off Friday but human triggered avalanches are still likely

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Caution in steep gullies and terrain traps where a small sluff could have large consequences. Avoid terrain where this problem can initiate slab avalanches on deeper layers.

  • Deep Persistent Slabs

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

    On Wednesday numerous avalanches were observed throughout the region that failed to ground

Weather Forecast

Scattered cloud, light precip up to 5cm and cool temperatures with light winds from the west forecasted for Friday and Saturday. Cloudy and cooling significantly and up to 10cm forecasted Sunday. 

Visit CAA's Mountain Weather Forecast for more specific details.

Snowpack Summary

A total of 60cm settling storm snow since January 1st. Wind effect and slab formation on lee aspects in the alpine and treeline. This overlies buried surface hoar up to 2200m in sheltered areas as well as buried wind slabs on lee features at treeline and above. Well consolidated midpack. The bottom of the snowpack consists of depth hoar and facets

Avalanche Summary

Widespread avalanche cycle night of January 7th through January 8th up to size 3 on all aspects and elevations. Consisting of wind slab, dry loose and failing at ground

Confidence

Due to the number of field observations

Regions covered