Avalanche forecast

Jasper

Nov 26 – 27, 2016Parks Canada
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Archived · expired 10 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
No rating
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Highlights

The Nov 11 Crust may become touchy due to the additional load the recent storm snow and moderate south winds have added.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Be cautious of wind slab in immediate lee and cross-loaded terrain in the alpine, particularly where the crust exists (up to 2600m all aspects).

Weather Forecast

Saturday will bring cloudy skies, an alpine high of -3, approximately 15cm of new snow and light South winds. Freezing levels expected to stay below 1600m.

Snowpack Summary

~20cm of HST in past 24hrs on the Parkway with L-M SW winds forming soft slab in lee features. Nov 11 crust (10cm of laminated ice layers) down 50cm @ TL and can be found between 2100-2600m on all aspects and will be a layer of concern as the snow load increases. The lower pack is well settled to ground.

Avalanche Summary

Recorded 1 Sz 2.5 in a cross loaded gully feature, W aspect 2300-2800m in Nigel Basin. Had poor visibility into the Alpine but suspect additional activity has occurred.

Confidence

Due to the number of field observations on Friday

Regions covered