Avalanche forecast

Jasper

Feb 29 – Mar 1, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Wed
Thu
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Snow is expected on Wednesday that may overload the weak surface hoar layer that was buried on Valentine's Day. This layer is now up to 75 cm deep on south facing wind loaded features.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Most open treeline and alpine slopes have wind slabs that may be sitting on the Valentine's Day surface hoar. On southerly aspects, this surface hoar has formed on top of a sun crust. Slabs on these features will be easily triggered.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely - Very Likely
    Size
    1–2
    20 to 40 cm of loose surface facets can be found on most sheltered northerly slopes. On steeper slopes, these are producing small loose avalanches that may have enough mass to knock over a skier or pull an ice climber off.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

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

Regions covered