Avalanche forecast

Jasper

Jan 9 – 10, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Fri
Sat
Alpine
4 · High
Treeline
4 · High
Below
3 · Considerable

Highlights

Probably going to be another great day at the ski hill. Avoiding avalanche terrain is advised.

Avalanche problems

  • Wind Slabs

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

    Wind loading has reached critical mass and we are seeing many avalanches on wind loaded features at all elevations and aspects. Expect this to continue Thursday.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    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

Skies will continue to clear and temperatures will drop into Thursday with light winds from the northwest. Friday winds will shift to come from the west and temperatures will gradually warm into the weekend. No precipitation is forecasted for this time period.

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

Snowpack Summary

A total of 65cm of 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

Regions covered