Avalanche forecast

Jasper

Nov 27 – 28, 2018Parks Canada
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Archived · expired 8 years ago

Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
No rating
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Highlights

Snowfall amounts are uncertain, but combined with the ongoing strong winds may load lee terrain enough to increase the danger rating.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Ongoing strong winds and incoming snow flurries will continue to build fresh windslabs.

  • 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. See forecast details for more info on this layer.

Weather Forecast

Ongoing strong SW winds.  Snow flurries will give up to 10cm of new snow by Wednesday. Alpine temperatures will be between -4 C and -8 C. Click here for the Avalanche Canada mountain weather forecast.

Snowpack Summary

Strong SW wind with incoming snow flurries is building fresh windslab. The October 25 crust, sitting 0-40cm off the ground, remains a concern. This crust is most prevalent in deeper snowpack areas - found predominately on N-NE lee features. Faceting above and below this layer continues to weaken the lower snowpack.

Avalanche Summary

The local ski hill triggered two windslabs (one large/size 2) during explosive control work on Sunday.

Confidence

Forecast snowfall amounts are uncertain

Regions covered