Lawinenlagebericht

Kootenay Boundary

Nov 26 – 27, 2012Avalanche Canada
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Archiviert · abgelaufen 14 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Lawinenprobleme

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–5
    There is a faceted crust that exists in the lower snowpack. Although no recent avalanches have been reported on this layer, triggering seems most likely on unsupported terrain at higher elevations or within start zones with smooth ground cover.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–4
    Although last week's snow has had time to gain strength, triggering storm/wind slabs may still be possible, particularly in steep, unsupported terrain.

Confidence

Poor - Due to limited field observations

Weather Forecast

Tuesday: Mostly clear skies / Moderate to strong northwesterly winds / Freezing level at 1300mWednesday: Increasing cloud throughout the day with light snowfall developing by the evening / Strong southwest winds / Freezing level at 1400mThursday: Continued snowfall with heavier accumulations in the north of the region / Strong southwest winds / Freezing level at 1400m

Avalanche Summary

No new avalanches have been reported. If you and your friends have been out exploring and riding in the backcountry, and have some observations to share please send an email to [email protected].

Snowpack Summary

Last week's storm/wind slabs have most likely gained considerable strength with the break in the weather over the past few days. In some parts of the region an early November rain crust sits near the bottom of the snowpack.  Where it exists, this crust has been seen from 1700 m to ridgetop on all aspects. Some tests have resulted in CTM-H ranges with sudden planar characteristics. I have also received reports of a SH layer buried up to 100 cm down. Tests on this layer are in the hard range with sudden planar characteristic. At this time the surface hoar may be specific to certain parts of the region.   Be a detective. Dig down and see how the snowpack is shaping-up in your neck of the woods.

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