Lawinenlagebericht

Cariboos

Feb 9 – 10, 2012Avalanche Canada
Auf der Karte ansehen
Archiviert · abgelaufen 15 years ago

Lawinengefahr

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

Lawinenprobleme

  • Cornices

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–7
    Large cornices are looming over many slopes. They are weakest when it's warm and sunny. A falling chunk could trigger a large avalanche on the slope below.

Confidence

Fair - Forecast snowfall amounts are uncertain

Weather Forecast

A firmly embedded ridge of high pressure in Alberta seems to be causing systems to fizzle once they reach the Columbia Mountains. On Friday light snowfall is expected but should taper-off with only trace amounts forecast for Saturday/Sunday. Winds should be light and west/northwesterly throughout the period with freezing levels peaking at about 1300m.

Avalanche Summary

Large chunks of cornice fall have been reported in recent days with limited effect on the slope below. Minor radiation sluffs on steep solar aspects. Otherwise, no new activity to report.

Snowpack Summary

Very warm alpine temperatures recently melted surface snow layers. A crust now exists to ridge top on solar aspects. Large weak cornices are plentiful and recently developed wind slabs may exist in certain areas. The upper snowpack appears to be settling well. Below about 1500m, crust/facet layers buried in early January are still causing some operators concern as well as widespread facets that were buried on January 20th. These layers represent a low probability/high consequence scenario. If you're traveling in the mountains now is a great time to take stock of current surface conditions (surface hoar, crusts) that will probably get buried at some point on Friday.

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