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Avalanche Forecast

Archived

Nov 30th, 2025–Dec 1st, 2025

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
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.

The wind is forecasted to increase, pockets of soft snow preserved by cold temperatures is available for transport.

Don't commit to steep slopes if the snow feels dense or stiff.

Confidence

Low

Avalanche Summary

On Saturday near Fernie an explosive triggered size 1.5 storm slab was reported.

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, tapering quickly at lower elevations.

The upper snowpack is variable, with wind-affected surface snow in open terrain and softer snow in sheltered areas. This overlies a crust that formed in early November. The lower snowpack consists of multiple crusts.

In many areas, especially below treeline, there is not enough snow to smooth out surface roughness or reach the threshold needed for avalanches.

Weather Summary

Sunday Night

Mostly clear skies. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -8 °C.

Monday

Mostly cloudy. Isolated flurries, increasing overnight 2 to 5 cm of snow. 20 to 30 km/h westerly ridgetop wind. Treeline temperature -9 °C.

Tuesday

Partly cloudy. 15 to 20 km/h northwest ridgetop wind. Treeline temperature -7 °C.

Wednesday

Partly cloudy. Isolated flurries, 1 cm of snow.10 to 20 km/h northwest ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make observations and continually assess conditions as you travel.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • 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.