Avalanche forecast

Jasper

Jan 18 – 19, 2015Parks Canada
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Archived · expired 12 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Snow, strong winds and rising temperatures on Sunday are perfect conditions for the development of wind slab. Heads up out there.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Strong South Westerly winds are redistributing existing snow as slab onto sheltered aspects and cross loaded features.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    The weak layer of surface hoar and facets from December can still be found and may become susceptible to triggering with more snow loading.

Weather Forecast

A pulse of snow starting on Sunday (15cm in the Icefields area and 6cm in the Jasper area) will be accompanied by strong Westerly winds and rising temperatures.

Snowpack Summary

The snowpack is highly variable throughout the forecast region. Alpine elevations are very wind effected with some drifting at higher elevations from moderate to strong south westerly winds.

Avalanche Summary

One large avalanche observed running on steep rock slabs on Whistler Mountain which was likely triggered by redistributed blowing snow.

Confidence

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

Regions covered