Akamina-Bonnington-Crawford-Flathead-Goat-Grohman-Kokanee-Kootenay Pass-Lizard-Moyie-Norns-Retallack-Rossland-South Okanagan-St. Mary-Valhalla-YmirBulletin d'avalanche

Valable pour
mardi 21 avril 2026
Publié: 20 avr., 23:00
Danger maximum
3 · MARQUÉ
Akamina-Bonnington-Crawford-Flathead-Goat-Grohman-Kokanee-Kootenay Pass-Lizard-Moyie-Norns-Retallack-Rossland-South Okanagan-St. Mary-Valhalla-YmirCA-ee71
3

Traduction en cours — affiché en langue source

Watch for changing conditions as you change aspect and elevation.The highest avalanche danger will be on wind-loaded slopes, and steep slopes seeing intense spring sun.

Danger par altitude

Alpin3Marqué
Limite forestière3Marqué
En dessous de la limite forestière2Limité

Problèmes d'avalanches actifs

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

On Sunday, west of Kaslo, a large (size 2.5) natural Cornice fall and a small (size 1.5) human triggered slab avalanche were reported in north facing alpine terrain. Also, on Saturday and Sunday, numerous small (size 1-1.5) natural wet loose avalanches were reported on steep slopes facing the sun.This region is data sparse. Please consider submitting a MIN to let us know what you're seeing out there.

Sun and rising freezing levels will turn snow moist during the day, warm temperatures overnight will likely prevent a strong crust from forming.Where dry snow prevails. 15 to 50 cm of recent storm snow sits on moist snow around treeline or likely on a crust in the alpine. In some areas east of Nakusp, small, weak facets have been seen on the crust.The mid and lower snowpack is well settled and strong.Check out this Conditions Update for tips on managing the current spring conditions.

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

Original (EN)

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