Bulletin d’avalanche

Lizard-Flathead

Nov 30 – Dec 1, 2016Avalanche Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Thu
Fri
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau
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Points saillants

Wind slabs may be lurking at higher elevations. Use extra caution on lee slopes at treeline and in the alpine.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Recent winds may have transported snow into wind slabs in the lee of southerly winds. Watch for pockets of wind slabs at higher elevations and immediately below ridge crests.

Confidence

-

Weather Forecast

Cloudy overnight with moderate northwest winds and a chance of flurries. Chance of broken skies on Thursday with light westerly winds and temperatures between -5 and -10 in the alpine. Winds increasing to strong westerly on Friday with a few cm of new snow and rising freezing levels. Mostly clear on Saturday with strong northwest winds and alpine temperatures around -5 celcius.

Avalanche Summary

No new reports from this region.

Snowpack Summary

Early season snowpack observations are still very limited in the region but the threshold for avalanches has been exceeded at treeline and in the alpine. Reports suggest that the snow depth at treeline is typically 110-150cm but a report from the east side of region shows only 80cm at treeline. The snowpack tapers off drastically below treeline and below around 1700m there is not yet enough snow for avalanches. On Friday and Saturday, generally light amounts of storm snow and strong winds were reported to have formed wind slabs in leeward terrain at treeline and in the alpine. Limited reports suggest the crust from the middle of November is down 50-80cm and the crust from early November is down 80-110cm.

Régions couvertes