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Avalanche Forecast

Archived

Dec 6th, 2025–Dec 7th, 2025

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

Regions

Kootenay Boundary, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, Ymir, Kokanee.

Another few flurries and wind could quickly increase slab reactivity.

Or barely cover early-season hazards.

Confidence

Low

Avalanche Summary

No new avalanches reported. If you are out and about in the mountains, please consider posting your observations to the MIN.

Snowpack Summary

At treeline and above, 10-20 cm of new snow covers faceted snow or surface hoar. The mid-November crust is buried 30-50 cm. Below, a few crusts are found in the lower snowpack, and in some areas, weak, sugary facets can be found near the ground.

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

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

Saturday night

Cloudy with flurries, 1 to 4 cm. 25 km/h west ridgetop wind. Treeline temperature -6 °C.

Sunday

Cloudy with isolated flurries. 10 cm of snow. 35 km/h west ridgetop wind. Treeline temperature -5 °C.

Monday

Cloudy with snow, 10-30 cm. 40 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

Tuesday

Mix of sun and cloud, 5 to 10 cm wet snow turning to rain at lower elevations. 40 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with aspect and elevation.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Be cautious of buried obstacles, especially below treeline.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.