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Avalanche Forecast

Archived

Dec 3rd, 2025–Dec 4th, 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, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Crowsnest North, Crowsnest South.

Strong winds at upper elevations may have created small pockets of wind slab that a person could trigger.

In sheltered areas, soft snow may offer decent riding conditions.

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

Strong winds and blowing snow may have formed isolated wind slabs at treeline and above. 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 mid-November. 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 are roughly 60 to 80 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

Wednesday Night

Mostly cloudy. Trace of snow. 50 km/h west ridgetop wind. Treeline temperature -7 °C.

Thursday

Cloudy. 50 km/h west ridgetop wind. Treeline temperature -7 °C.

Friday

Mostly cloudy. 3 to 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -6 °C.

Saturday

Mostly cloudy. Up to 5 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -10 °C.

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.