Avalanche forecast

Northwest Inland

Jan 25 – 26, 2013Avalanche Canada
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Archived · expired 14 years ago

Avalanche danger

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

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–4
    Wind slabs may be found behind terrain breaks such as ridges and ribs.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–6
    A deeply buried weak layer near the base of the snowpack could be triggered by large loads such as a cornice collapse or from a thin-spot trigger point.

Confidence

Poor - Due to limited field observations

Weather Forecast

Saturday: Light W winds, becoming strong NW. Alpine temperature near -7. Very light snow.Sunday: Strong W winds, becoming strong to extreme NW. Alpine temperature near -8. 5-15 cm snow.Monday: Light W wind. Alpine temperature near -14. Very light snow.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

New snow is landing on a medley of old surfaces including hard and soft wind slabs, scoured slopes, blue ice and thin melt-freeze crusts. Winds are likely to shift snow into slabs in the lee of terrain breaks such as ridges and ribs. Surface hoar layers buried in the upper snowpack are patchy in their distribution. Recent snowpack tests recently gave generally hard to no results near Smithers. An otherwise strong mid-pack overlies a weak base layer of facets/depth hoar. The snowpack depth is around 100 cm at treeline.

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