Bulletin d’avalanche

Banff Yoho Kootenay

Apr 2 – 3, 2013Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Thu
Fri
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Spring time conditions exist. Watch for increasing hazard on solar aspects as day time temperatures increase.

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–3
    Cornice falls have been observed nearly every day. Some of these have been triggering slabs on the faces below. Many have run over usual travel routes.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–3
    Over the past several days a spring time isothermal cycle has resulted in numerous loose wet snow avalanches up  to Class 3  on steep solar aspects in the afternoon.

  • Wet Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–3
      Over the past several days a spring time isothermal cycle has produced numerous wet slab avalanches up to Class 3  on solar aspects in the afternoon.

Weather Forecast

Light snow with accumulations around 5 cm forecasted for Wednesday. Freezing levels will be around 2000 metres.

Snowpack Summary

Spring time conditions. Overnight crusts on solar aspects are breaking down by early afternoon. North aspects are dry above 2200 m. The forecasted new snow will be sitting on a hard crust on most aspects and may be easily triggered by skiers or with afternoon warming.

Avalanche Summary

Some cloud cover and light alpine winds kept things cooler today. Some isothermal loose snow avalanches on steep solar aspects were observed in afternoon.

Confidence

Régions couvertes