Bulletin d’avalanche

Jasper

Feb 29 – Mar 1, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

Snow is expected on Wednesday that may overload the weak surface hoar layer that was buried on Valentine's Day. This layer is now up to 75 cm deep on south facing wind loaded features.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–3
    Most open treeline and alpine slopes have wind slabs that may be sitting on the Valentine's Day surface hoar. On southerly aspects, this surface hoar has formed on top of a sun crust. Slabs on these features will be easily triggered.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–2
    20 to 40 cm of loose surface facets can be found on most sheltered northerly slopes. On steeper slopes, these are producing small loose avalanches that may have enough mass to knock over a skier or pull an ice climber off.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Wednesday

Régions couvertes