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Avalanche Forecast

Archived

Dec 6th, 2025–Dec 7th, 2025

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

Regions

Crowsnest North, Crowsnest South.

Watch for stiff, wind-loaded snow in open terrain and below ridge crests.

The best riding will be in sheltered terrain at upper elevations, the biggest challenge will be getting to it.

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

Isolated flurries and wind have produced a variable snowpack. At upper elevations, winds have exposed rocks and left dense wind slabs in open terrain; softer snow is found in sheltered and lower elevation locations. This overlies a crust that formed in mid-November, buried 30-50 cm deep. The lower snowpack consists of multiple crusts, and in some areas, a layer of weak, sugary facets can be found near the ground.

Total snowpack depths range from 30 to 100 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 isolated flurries, up to 3 cm snow. 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Sunday

Mix of sun and clouds with isolated flurries, up to 3 cm snow. 50 km/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level 1100 m.

Monday

Cloudy with flurries. 1 to 4 cm snow. 70 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1700 m.

Tuesday

Mostly cloudy, 5 to 10 cm wet snow turning to rain at lower elevations. 60 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • Watch for areas of hard wind slab on alpine features.
  • 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.