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Avalanche Forecast

Archived

Dec 2nd, 2025–Dec 3rd, 2025

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

Regions

Boundary, Ningunsaw, Ningunsaw, Ningunsaw.

As you explore new terrain, check if the recent snow is sticking to the old surface.

Slopes sheltered from the wind should still hold good riding and lower avalanche danger.

Confidence

Low

Avalanche Summary

On Monday and Tuesday, north of Stewart, a small vehicle triggered wind slab avalanche was reported. Also, numerous small loose dry and storm slab avalanches were reported in the recent storm snow.

Snowpack Summary

Up to 25 cm of recent snow and moderate to strong southeast through west wind may have formed reactive wind slabs on leeward slopes. Expect to find soft snow in sheltered areas. A layer of weak, feathery crystals may be found under the recent snow.

Wind has varied in direction over the past week. Expect most exposed slopes to be wind-affected.

A 2 to 10 cm thick rain crust can be found down 70 to 100 cm at 1400 m and below. This layer is currently not an avalanche concern.

At treeline there is an average snowpack depth of 300 cm. Snowpack depth tapers with elevation to around 50 cm at valley bottoms. Many early season hazards are just below the surface below treeline.

Weather Summary

Tuesday Night
Mostly cloudy. 2 to 5 cm of snow at treeline. 35 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Wednesday
Mostly cloudy. 3 to 5 cm of snow at treeline. 25-40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1000 m.

Thursday
Mostly cloudy. 5 to 10 cm of snow at treeline. 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 800 m.

Friday
Mostly sunny. 1 cm of snow at treeline. 10 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
  • Shooting cracks, whumpfs, and recent avalanches are strong indicators of an unstable snowpack.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • 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.