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Avalanche Forecast

Archived

Nov 29th, 2025–Nov 30th, 2025

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Kootenay Boundary, Lizard-Flathead, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, Ymir, Akamina, Flathead, Lizard, Crawford, Moyie, St. Mary, Kokanee.

Wind slabs may be stubborn to trigger, but even a small avalanche could be dangerous. Assess steep, open terrain features and areas directly lee of ridges before committing.

Confidence

Low

Avalanche Summary

On Friday a skier-triggered size 1 was reported in the Harvey area near Fernie. The crown was roughly 15 cm deep and involved the recent storm snow.

Snowpack Summary

Total snowpack depths are roughly 80 to 120 cm at treeline, tapering quickly at lower elevations.

Roughly 50 to 70 cm of accumulated snow is settling, and sticking well to the harder crust layers underneath, which make up most of the lower snowpack.

In many areas, especially at treeline and below, there is not enough snow to overcome surface roughness and be above the threshold for avalanches.

Weather Summary

Saturday Night

Partly cloudy. 10 km/h northeast ridgetop wind. Treeline temperature -10 °C.

Sunday

Sunny. 20 km/h northwest ridgetop wind. Treeline temperature -7 °C.

Monday

Cloudy. Flurries, 1 to 2 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -8 °C.

Tuesday

Partly cloudy. isolated flurries 1 cm of snow. 30 km/h northwest ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at treeline.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Be cautious of buried obstacles, especially below treeline.

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.