Avalanche forecast

Jasper

Nov 30 – Dec 1, 2017Parks Canada
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Archived · expired 9 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Excellent riding can be found in sheltered treeline locations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Sensitive wind slabs continue building at ridge tops and if triggered, has the potential to step down to the deeper instability.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Storms slabs continue to be an issues as the recent snow settles. Expecting settlement and new snow load will next few days will help heal this problem.

Weather Forecast

Cloudy with sunny periods and isolated flurries bringing a trace of new. Cools temps with light to moderate SW gusty winds. Alpine high, -8.

Snowpack Summary

Wind slabs continue to build in exposed lee features. Storm slabs formed with 40cm of snowfall over the weekend. These problems sit on a recently developed rain crust 30-60cm deep. A persistent slab up to 200cm thick sits on the Halloween Crust, low in the snowpack. This crust can be found up to 2,700m depending on location.

Avalanche Summary

Previous unobserved natural activity from the alpine, evident meow with good visibility.

Confidence

Due to the number and quality of field observations

Regions covered