Bulletin d’avalanche

South Rockies

Feb 25 – 26, 2013Avalanche Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

Wed
Thu
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–4
    Recent snow and wind have created slabs, which may be particularly touchy on slopes lee to the wind.

Confidence

Fair - Timing, track, or intensity of incoming weather is uncertain for the entire period

Weather Forecast

Tuesday and Wednesday: Possible sunny breaks with isolated flurries, winds light from the west and alpine temperatures -5. Freezing levels rising to 1000m on Tuesday.Thursday: Mostly overcast with the possibility of light flurries throughout the day. Winds moderate from the west and alpine temperatures of -10.

Avalanche Summary

Numerous loose dry avalanches (size 1.5) failed naturally (some with cornice fall as the trigger) and with skier traffic in steep terrain on Friday and Saturday. In the south-east of the region, a couple of size 2 slabs were triggered by explosives.

Snowpack Summary

10-30 cm of snow which fell on Friday added to recent snowfall above old surfaces including loose dry snow, old wind slabs and sun crusts. This recent snow has been shifted onto lee slopes by strong SW to NW winds. New storm slabs, cornices and wind slabs are likely. Mid and lower snowpack layers are generally well settled and stable.

Régions couvertes