Avalanche forecast

Jasper

Nov 22 – 23, 2018Parks Canada
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Archived · expired 8 years ago

Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
No rating
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Highlights

With new snow and wind, assess the strength of the snowpack before committing to skiing. 

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    New snow and wind will create windslab in lee features.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1.5–2.5
    Assume all skiable slopes have this crust, and assess the strength of the interface before jumping into any committing lines.

Weather Forecast

A small storm in forecast to arrive Thursday morning bringing 8-10cm of snow and moderate SW winds. Daytime treeline temperatures will hover around -5C.  Click here for the Avalanche Canada mountain weather forecast.

Snowpack Summary

Around 10cm of snow and moderate SW winds forecast starting Thursday morning. The Oct 25 crust is 2-4cm thick and down 60 to 80cm with facets above and below it. Hard sudden collapse failures have been observed immediately below this crust in test profiles. Early season hazards lurking beneath the shallow snowpack remain a concern.

Avalanche Summary

Dry loose snow avalanches up to size 2 were observed over the weekend from steep solar terrain in the alpine.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Thursday

Regions covered