Avalanche forecast

Jasper

Dec 4 – 5, 2017Parks Canada
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Archived · expired 9 years ago

Avalanche danger

Tue
Wed
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Sheltered tree line slopes will offer excellent skiing. 

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Wind slabs are present on lee aspects.  Bond strength of these slabs to the snowpack below is uncertain. 

Weather Forecast

Stagnant weather system into the beginning of the week with cool temperatures, clearing skies, light winds and no precipitation.  Could this be the beginning of the cursed drought???

Snowpack Summary

Wind slabs in exposed lee features. A significant crust (black friday, Nov.23) can be found down 30 to 70cms. A persistent slab overlays this crust and so far the bond appears to be strengthening at this interface. The Halloween crust sits well down in the snowpack at TL locations and as high as 2700m.

Avalanche Summary

Several old (+48hrs) slab avalanches to size 2.5 in steep alpine terrain on North aspect observed around the Churchill Range.

Confidence

Due to the number of field observations on Tuesday

Regions covered