Avalanche Forecast

Archived

Apr 22nd, 2026–Apr 23rd, 2026

Alpine

Spring Conditions

Treeline

Spring Conditions

Below Treeline

Spring Conditions

Alpine

Spring Conditions

Treeline

Spring Conditions

Below Treeline

Spring Conditions

Alpine

Spring Conditions

Treeline

Spring Conditions

Below Treeline

Spring Conditions

Regions

Banff Yoho Kootenay, Little Yoho, Banff, East Side 93N, Kootenay, Lake Louise, LLSA, Sunshine, West Side 93N, Field.

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.

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.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.