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Avalanche Forecast

Archived

Dec 27th, 2025–Dec 28th, 2025

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

Regions

North Rockies, East Kakwa, Kakwa, Pine Pass, Tumbler.

New wind slabs are expected to form throughout the day, assess for wind slabs in exposed terrain.

The best and safest riding will be on slopes that have soft snow without any slab properties.

Confidence

Moderate

  • Uncertainty is due to the speed, direction, or duration of the wind and its effect on the snowpack.
  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

No new avalanches have been reported in the past 4 days.

If you are heading into the backcountry, please consider sharing your observations via the Mountain Information Network

Snowpack Summary

Surface snow will likely be redistributed into small wind slabs on north and east facing terrain during the day on Sunday.

A prominent crust, formed in mid-December, is now buried between 60 and 100 cm deep. This crust extends up to 1800 m near the Pine Pass area.

In thin snowpack areas, faceted grains or depth hoar may exist at the base of the snowpack.

Weather Summary

Saturday Night

Mostly cloudy. 1 to 3 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -18 °C.

Sunday

Mostly cloudy. 1 to 4 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -12 °C.

Monday

Mostly cloudy. 4 to 25 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Tuesday

Mostly cloudy. 5 to 20 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.

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.