Avalanche forecast

Northwest Coastal

Nov 30 – Dec 1, 2013Avalanche Canada
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Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Precipitation with strong winds event happening on the North Coast. If you have avalanche data or information please send it to[email protected]

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–3
    Use caution on wind loaded lee slopes. New snow load may trigger buried weak layers. The possibility of avalanches is increasing.

Avalanche Summary

No avalanches reported yet, however, expect activity on wind slabs that develop during the storm. The added load of new snow and wind transported snow may overload weak layers.

Confidence

Fair - Freezing levels are uncertain

Weather Forecast

Cold arctic air will move into the region with the passing of the Pacific frontal systems. The arctic air is forecast to stay in the region for the remainder of the week. Winds will change from southwest to north then northeast by Tuesday.

Snowpack Summary

Destructive wind slabs exist at tree line and above on east and northeast lee slopes. Rain at lower elevations has saturated the lower snowpack and will stabilize when the arctic air arrives. Deeply buried October crust may become reactive with the weight of the new snow. Little is known about the extent of this layer with regards to the aspect and elevations where it can be found.

Regions covered