Lawinenlagebericht

Northwest Coastal

Apr 2 – 3, 2012Avalanche Canada
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Archiviert · abgelaufen 14 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
2 · Mässig
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Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely - Very Likely
    Größe
    1–4
    Forecast strong winds and new snow will create fresh and reactive windslabs on lee terrain.

  • Cornices

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–6
    Cornices are reported to be very large and potentially unstable at this time. A cornice fall could be destructive by itself, and may also act as a trigger on the slope below.

Snowpack Summary

On Monday light amounts of new snow were redistributed by strong to extreme winds into hard and soft windslabs at higher elevations. The recently developed windslabs overlie melt freeze conditions that exist on all aspects below 1000 m and on sun-exposed aspects higher up. A surface hoar layer that formed in recent days was also buried on Monday and may become a layer of concern as the overlying slab develops. Cornices in the region are reported to be very large and potentially unstable.

Confidence

Fair - Intensity of incoming weather is uncertain

Weather Forecast

Tuesday: light to moderate snowfall - strong south winds - freezing level at 700m Wednesday: very light snowfall - moderate south winds - freezing levels at 900m Thursday: Mix of sun and cloud as a clearing trend develops - light north winds - freezing level at 1000m

Avalanche Summary

A size 1 windslab was ski cut on Monday on a steep roll in the north of the region. Expect a spike in wind slab avalanche activity with forecast weather.

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