Bulletin d’avalanche

Jasper

Mar 13 – 14, 2016Parks Canada
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Archivé · expiré 11 years ago

Danger d’avalanche

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

No significant, nor dramatic changes expected in the weather or snowpack.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Uniform wind slab has formed on most lee alpine and tree line slopes and cross-loaded features.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    This problem was most active in the Maligne and surrounding Jasper area where the average snow pack is shallow but is proving much less active in the Icefields area.

Weather Forecast

Mainly cloudy with isolated flurries for the Maligne and Icefields areas. 3 to 4cms Sunday evening with trace amounts expected through the beginning of the week. Valley bottom freezing levels and alpine temperatures to -5 °C. Gusty westerly winds over the day Monday.

Snowpack Summary

Maligne/Jasper: Variable snow depth above tree-line, relative to exposure. Average HS 70cm. Surface wind slabs and persistent slab down 40-90cm. Icefields: Variable snow depth above tree-line, relative to exposure. Average HS 120cm. Widespread wind slabs overlaying supportive mid pack and weak base.

Avalanche Summary

No new avalanches observed or reported

Confidence

Due to the number of field observations

Régions couvertes