Lawinenlagebericht

Jasper

Dec 22 – 23, 2012Parks Canada
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Archiviert · abgelaufen 14 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Natural loose snow avalanches were observed on very steep terrain in thin snow pack areas. Ice climbers should evaluate routes and approaches that may have similar conditions above them.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–3
    10 cm of new snow has buried the wind slabs that formed earlier this week from moderate to strong SW winds in the Icefields area.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely
    Größe
    2–3
    The strong mid-pack above this weakness is slowly loosing its strength. This issue is more prevalent in shallow snow pack areas.

Weather Forecast

Cold cloudy conditions with light flurries and light to moderate NW winds can be expected as arctic air moves into the forecast area.

Snowpack Summary

Up to 10 cm of new snow in the Icefields area has buried recently formed wind slab on NE aspects, tree line and above. The mid snowpack remains supportive however it is quickly loosing strength in shallow snowpacks.

Avalanche Summary

Natural loose snow avalanches have been reported on steep slopes below tree line where the snowpack is thin.  Loose snow avalanches to size 2 were the result of avalanche control work on the Parkway on December 21st.  The control work was on thin steep below tree line slopes.

Confidence

Wind effect is extremely variable on Saturday

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