Bulletin d’avalanche

Jasper

Apr 8 – 9, 2016Parks Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Sun
Mon
Alpin
Sans niveau
Limite forestière
Sans niveau
Sous la limite
Sans niveau

Points saillants

Plan to travel early and be off big slopes by early afternoon. 

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Cornice failures is possible.  Avoid slopes with cornices overhead.
  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Will still be an issue on south facing slopes.
  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–4
    Cool temperatures over the weekend will reduce this problem but caution advised on slopes if hot sunny conditions are experienced.

Weather Forecast

A typical diurnal pattern is expected through the weekend with late afternoon freezing level limited to 2250m. A cooler day expected on Saturday with light winds and a mix of sun and clouds. Similar conditions on Sunday. Should be a beautiful weekend!

Snowpack Summary

A strong melt freeze crust will form Friday night after a very warm day. This crust will bridge a weak and isothermal snowpack on most tree-line and alpine slopes. This crust will break down with increasing temperatures and solar input. A persistent slab, 30 to 70cms thick, will be of greatest concern on Northerly aspects.

Avalanche Summary

No new avalanches observed at time of bulletin (15:30 hrs) but expecting continued solar and temperature triggered avalanches on all aspects and elevations.

Confidence

Régions couvertes