Avalanche forecast

Jasper

Dec 16 – 17, 2015Parks Canada
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Archived · expired 11 years ago

Avalanche danger

Wed
Thu
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low
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Highlights

Take an incrementally progressive approach to the commitment of your ski lines!

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    A thin windslab can be found in lee areas at treeline and into the alpine. Several natural avalanches started with this slab and then stepped down to full depth releases in the alpine following last weeks storm.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    1–2
    The Dec3 layer down 60cm has not been associated with any observed natural activity nor has it proven to be reactive to skier traffic. Further cooling temperatures and the consistently supportive mid-pack helping increase confidence in this layer.

Weather Forecast

Wednesday setting up to be a lovely day in the mountains for all enthusiasts. Expecting small insignificant flurries overnight bringing very little new snow and breaking in the morning to broken sunny skies and cool temps with forecasted highs at or near -10. North-westerly ridge top winds should be in the low to moderate range with moderate gusts.

Snowpack Summary

The snow pack is consistently supportive with little variation in mid-pack density above 2000ms. Excellent quality touring and skiing at all elevations. Wind slab can be found in lee areas at and above treeline. Dec 3rd interface is down about 60cm but it is not easily triggered. Below 1900ms the HS is more typical of the Rockies; weak and shallow.

Avalanche Summary

No new avalanche activity observed and reported

Confidence

Due to the quality of field observations

Regions covered