Bulletin d’avalanche

Banff Yoho Kootenay

Avalanche Canada
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Danger d’avalanche

Fri
Sat
Alpin
Conditions printanières
Limite forestière
Conditions printanières
Sous la limite
Conditions printanières
Périmé — ce bulletin a expiré 4 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Its going to be all freeze and no melt with light snow over the next few days. Watch locally for new and old wind slabs in lee alpine terrain.

Problèmes avalancheux

  • Wind Slabs

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

    Lingering wind slabs remain at upper elevations, and watch locally for small new slabs forming Wednesday on ridgetop lees.

Confidence

Avalanche Summary

No new avalanches were observed or reported on Wednesday.

Snowpack Summary

North-facing aspects above 2600 m hold dry, wind-affected snow. On solar aspects, a crust extends to ridgetop and has been weakening under daytime heating. As a cooling trend moves into the region, a widespread surface crust will lock in the snowpack everywhere except on high north-facing terrain.

Weather Summary

Temperatures will fall to below freezing at valley bottom and -10 to -15C at treeline. Some light snow mainly along the East slopes (5-10cm) will end during the day Thursday, and winds will be light to moderate.

Cold with light snow may continue for Friday and Saturday, with an upslope component.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.

Régions couvertes