Bulletin d’avalanche

Banff Yoho Kootenay

Dec 21 – 22, 2013Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
1 · Faible

Points saillants

Even though the cool temps have tightened the snowpack, the potential to trigger full depth avalanches remains due to the weak base that will be a problem for some time to come. JBW

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–3
  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    2–4

Weather Forecast

Cool northwesterly flow with some weak disturbances will continue for the next few days bring little snowfall but cold breezy conditions. Temps warm slightly by Sunday.

Snowpack Summary

Some moderate wind transport is adding to the slabs at treeline and above. This will increase the propagation potential across the start zone features. The weak base with depth hoar and the October melt freeze crust will mean any avalanche will involve the entire snowpack.

Avalanche Summary

No new avalanches were observed today, but we suspect a few more slabs pulling out on steep lee features with the additional loading. Avalanches to size three both natural and explosive triggered have occurred over the last few days some running full path.

Confidence

Régions couvertes