Lawinenlagebericht

South Columbia

Nov 23 – 24, 2013Avalanche Canada
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Archiviert · abgelaufen 13 years ago

Lawinengefahr

Mon
Tue
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Forecast produced with limited field observations.  If you're in the field, please send any information to:[email protected]

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–4
    Wind slabs persist in the alpine and at tree line especially on lee slopes

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–5
    A crust layer buried near the base of the snowpack will remain problematic for some time to come, with the possibility of producing large and destructive avalanches.

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–4
    Rising temperatures can produce wet sloughs on southerly aspects and may trigger deeper instabilities

Snowpack Summary

Recent storm snow is settling and will gain strength with time and warming temps. Wind slabs linger in lee terrain. Surface hoar buried in early November exists in the mid snowpack but due to a lack of data little is known about its reactivity. The October crust/facet interface buried in the lower snowpack will likely be of concern for the foreseeable future. Valley fog and cold clear temps are producing a new surface hoar layer at fog levels and in sheltered north aspects.

Confidence

Fair - Due to the number and quality of field observations

Weather Forecast

Cool temps will give way to gradual warming for the forecast period with freezing levels going up to 3000 M in the next few days. No significant precipitation is in the forecast for the next 7 days. Winds are expected to be generally light to moderate for the forecast period.

Avalanche Summary

High winds accompanying the last significant snowfall produced wind slabs in exposed alpine and tree line locations producing avalanches up to size 3. Rising temps may produce wet sloughs on steep S facing alpine slopes and could trigger deeper instabilities

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