Bulletin d’avalanche

Banff Yoho Kootenay

Jan 19 – 20, 2012Parks Canada
Voir sur la carte
Archivé · expiré 15 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Ouvrir la carte complète

Points saillants

Observations of several large avalanches in the last 48 hrs from very steep alpine terrain indicate the possibility of a basal release still exists. A gradual warming trend with precip and stronger winds for Sat. will increase hazard for the weekend

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Thin windslabs exist at treeline and in the alpine. These will facet out with the forecasted cold temperatures, but may be triggerable by riders in the next few days. An avalanche on this layer may be enough to step down to the basal facets.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Cold temperatures are facetting a well settled midpack which overrides a weaker facetted base. This weak base is found most places except the west side of the divide. Many thin spots exist in the alpine and treeline due to previous strong winds

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Régions couvertes