Bulletin d’avalanche

Banff Yoho Kootenay

Feb 23 – 24, 2022
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Archivé · expiré 5 years ago

Danger d’avalanche

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

Points saillants

Several reports of skier triggered wind slabs in last day. Exercise caution as you transition into open terrain at tree-line and above.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Wind slabs that exist from redistribution of recent storm snow still exist in the alpine and some tree line locations. The wind slabs are sitting on a variety of surfaces including hard slabs, SH and facets.

Confidence

Weather Forecast

Cold weather will continue on Wednesday and then a warming trend begins on Thursday. For Wednesday valley bottom temps rising to -10 during the day and ridge-top temps rising to -15. Winds will be light from the north-west. Little to no snow forecast through end of week.

Snowpack Summary

Recent storm snow has been redistributed by winds to create widespread wind effect, wind slabs and scoured surfaces in alpine a tree-line elevations. The Jan 30th surface hoar/sun crust layer is variable in distribution, is 40-60 cm down and is producing variable results in snowpack tests.

Avalanche Summary

Report of a skier triggered size 1.5 wind slab near Yoho Pass in the alpine. Another report of a skier triggered avalanche (size 1.5) near Vermillion Crossing at treeline. Sunshine skil hill reported several size 1 wind slabs in the alpine. Very little recent natural activity observed.

Régions couvertes