Avalanche forecast

Jasper

Apr 6 – 7, 2016Parks Canada
View on map
Archived · expired 10 years ago

Avalanche danger

Fri
Sat
Alpine
No rating
Treeline
No rating
Below
No rating
Open full map

Highlights

Meow is the the time to get out early and be home before it gets warm. Freezing lvl rising to 2350m Thurs and up to 3200m on Friday!

Avalanche problems

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Large hanging cornices will weaken with rising temperatures. Use caution traveling below or near them.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Pay attention to daytime warming and stay away from sunny slopes in the afternoon

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4
    Rising temperatures will increase the likelihood of triggering this problem. Shallow areas are likely trigger spots.

Weather Forecast

Very light amounts of precip in the overnight forecast (>1mm). Mostly sunny on Thursday with alpine temperatures expected near +1 by the afternoon with light west winds. Freezing levels rising to 3200m on Friday with mostly sunny skies.

Snowpack Summary

Supportive crust (20cm to 3cm) at tree-line and below, making travel easy on skis. Persistent slab, 30 to 70cms thick, reacting to compression tests on facets in the low moderate range. Expect to see this more reactive underfoot as crust breaks down and freezing level rises. Mod - Strong winds pushing small amount of HN into pockets of slab.

Avalanche Summary

Old activity to size 2.5, mostly on solar aspects observed by field teams along the Icefields Parkway. Mix of loose wet and slab avalanches observed.

Confidence

Regions covered