Avalanche forecast

Jasper

Dec 5 – 6, 2017Parks Canada
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Archived · expired 9 years ago

Avalanche danger

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

Good skiing exists in sheltered areas near treeline.

Avalanche problems

  • Wind Slabs

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

Weather Forecast

As the week progresses the cooler air will be displaced to the east as a ridge of high pressure brings clear skies and elevates freezing levels. A strong inversion will develop over the next few days. Sadly no new precipitation is forecast. Overnight lows will be -12 and ridge top winds will be moderate from the NW. Thur freezing levels to 3,300m.

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

No new avalanches have been reported in the past 24 hours

Confidence

Freezing levels are uncertain on Wednesday

Regions covered