Avalanche forecast

Jasper

Apr 19 – 20, 2012Parks Canada
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Archived · expired 14 years ago

Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Should extended sunny periods combine with warm afternoon temperatures, the avalanche danger may increase quickly at all elevations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    Windslabs are present below corniced ridgelines. These slabs have not been reactive in the past week, however, warm temps and solar exposure may wake them up.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    Warmer temperatures and sunny skies will increase the likelihood of these avalanches. These slides may trigger slab avalanches deeper in the snowpack, especially around convexities near treeline.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–4
    This layer is now buried by a settled upper snowpack. Triggering of this layer is still possible especially from a thin spot.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Friday

Regions covered