Bull-Crowsnest North-Crowsnest South-Elkford East-Elkford WestBulletin d'avalanche

Valable pour
mardi 21 avril 2026
Publié: 20 avr., 23:00
Danger maximum
3 · MARQUÉ
Bull-Crowsnest North-Crowsnest South-Elkford East-Elkford WestCA-0d20
3

Traduction en cours — affiché en langue source

Avalanche danger will increase through the day with warming and sun. Conditions will deteriorate sooner than expected if a strong crust does not form overnight. Plan your trip accordingly.

Danger par altitude

Alpin3Marqué
Limite forestière3Marqué
En dessous de la limite forestière2Limité

Problèmes d'avalanches actifs

Neige mouillée
Neige mouillée
Toutes les altitudes
Taille2/5
FréquenceCertain
StabilitéTrès mauvaise
Corniche
Corniche
Limite forestière et au-dessus
Taille3/5
FréquencePossible
StabilitéMoyenne
Plaque à vent
Plaque à vent
Limite forestière et au-dessus
Taille2/5
FréquencePossible
StabilitéMoyenne

Numerous wet loose avalanches up to size 2 were reported over the weekend.We suspect natural loose wet avalanches will continue on steep, sun-exposed slopes during the afternoons, with a possibility of occasional cornice failures as well. Isolated wind slabs may be primed for human triggering on high north-facing slopes.

Rising freezing levels and strong sun will weaken the snowpack throughout the day.A melt-freeze crust is expected on the surface on all but northerly alpine terrain, where 20 to 40 cm of dry snow sits atop a crust. Some lower elevation areas below treeline may not experience an overnight refreeze and remain moist or isothermal.A weak layer of facets above a hard crust is buried 50 to 70 cm deep. This layer hasn't produced avalanches in over a week.Facets exist at the base of the snowpack in shallow areas.

Source: Avalanche Canada — Avalanche Canada · Voir le bulletin d'origine

Original (EN)

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