Akamina-Bonnington-Crawford-Flathead-Goat-Grohman-Kokanee-Kootenay Pass-Lizard-Moyie-Norns-Retallack-Rossland-South Okanagan-St. Mary-Valhalla-YmirAvalanche Forecast

Valid for
Tuesday, April 21, 2026
Published: Apr 20, 11:00 PM
Maximum Danger
3 · CONSIDERABLE
Akamina-Bonnington-Crawford-Flathead-Goat-Grohman-Kokanee-Kootenay Pass-Lizard-Moyie-Norns-Retallack-Rossland-South Okanagan-St. Mary-Valhalla-YmirCA-ee71
3

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 by Elevation

Alpine3Considerable
Treeline3Considerable
Below treeline2Moderate

Active Avalanche Problems

Wet Snow
Wet Snow
All elevations
Size3/5
FrequencyPossible
StabilityFair
Wind Slab
Wind Slab
Treeline and above
Size2/5
FrequencyPossible
StabilityFair
Cornice
Cornice
Alpine
Size3/5
FrequencyPossible
StabilityFair

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 · View Original Bulletin

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