Avalanche forecast

Jasper

May 7 – 8, 2017Parks Canada
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Archived · expired 9 years ago

Avalanche danger

Tue
Wed
Alpine
No rating
Treeline
No rating
Below
No rating

Highlights

Have a safe and fun spring my friends!! Jasper Visitor Safety Team

Avalanche problems

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Cornice failures are more likely with warm alpine temperatures.
  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Freezing overnight temperatures decrease this danger in the morning, it increases with daytime heating, sun and rain. Most widespread during the late afternoon on solar facing slopes. Sluffs from rocks can trigger large slides once the snow is wet.
  • Wet Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Large wet slabs up to size 4 have been observed on all aspects and elevations. Even small wet slabs can be quite destructive due to their density. Avoid traveling through avalanche terrain during the heat of the day.

Weather Forecast

Avalanche hazard for the day is a direct result of the forecasted weather. Good situational awareness is very important for a safe and fun spring.

Snowpack Summary

Spring conditions on all aspects and elevations with a melt freeze crust that is dependent on overnight freezing conditions. The snowpack is moist to wet snow to ground below this crust.

Avalanche Summary

Avalanche activity will increase after warm nights and/or with thermal inputs such as rain, solar radiation and daytime warming. The avalanche danger will be lowest after cold nights and strong crust formation and will increase into the afternoon and evening before sunset. Likely trigger spots are rocks, cliffy terrain and shallow snowpack areas.

Confidence

Regions covered