Bulletin d’avalanche

South Rockies

Feb 24 – 25, 2013Avalanche Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

Avalanche danger may rise if snowfall amounts exceed what is forecast.

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

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

Weather Forecast

Sunday night: Light snow. Strong W winds. Alpine temperature around -12.Monday: 10-15 cm snow. Moderate to strong NW winds. Alpine temperature around -9.Tuesday: Light snow or flurries, with sunny breaks. Light winds. Alpine temperature around -7.Wednesday: Light snow. Light winds. Alpine temperature around -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