Bulletin d’avalanche

Lizard-Flathead

Feb 2, 2017Avalanche Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

The best and safest riding may be in sheltered terrain around tree line

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Recent avalanche observations suggest wind slabs are still reactive to the weight of a person.

Confidence

Moderate - Forecast snowfall amounts are uncertain on Saturday

Weather Forecast

Thursday: Mix of sun and cloud / Light south wind / Alpine temperature -12Friday: Cloudy with sunny breaks and isolated flurries / Light southwest wind / Alpine temperature -5Saturday: Flurries, accumulation 5-10cm / Light to moderate southwest wind / Alpine temperatures of about -3More details can be found on the Mountain Weather Forecast.

Avalanche Summary

Recent avalanche activity in the region has been reported as natural and skier triggered wind slabs up to size 2 in the alpine and at tree line.

Snowpack Summary

In general, snow surfaces are best described as heavily wind affected with scouring and sastrugi formation noted on many terrain features. Crusts can be found near the surface on solar aspects at high elevations and on all aspects below 1600m. There have been isolated reports of a surface hoar layer from early January buried about 40 cm deep in sheltered areas, although not much is known about its current reactivity. About 70cm below the surface, you'll find sugary facet crystals which formed during December's cold snap. Although avalanches are currently unexpected at this interface, this layer could come back to life with with warming, significant loading or a large trigger at a thin spot.

Régions couvertes