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Avalanche Forecast

Archived

Jan 1st, 2026–Jan 2nd, 2026

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

Regions

Lizard-Flathead, Akamina, Flathead, Lizard, Crowsnest South.

Isolated pockets of wind slab could still be triggered at higher elevations.

Confidence

High

  • The snowpack structure is generally well understood.

Avalanche Summary

During recent explosive-control work, a few large (size 2 to 3) wind slab avalanches occurred in the Crowsnest area. While none of these avalnches propogated particualrly wide, they all ran very far (full path) on old firm, buried crusts.

Snowpack Summary

Light snow on Friday will begin to bury a variety of old surfaces, including surface hoar in wind-sheltered terrain and a sun crust on south-facing slopes.

Up to 50 cm of snow since Christmas continues to settle above a thin melt-freeze crust at elevations around 2000 m and below.

The mid and lower snowpack is characterized by multiple crusts, with moist snow persisting near the base in some areas.

Snow depths at treeline generally range from approximately 100 to 200 cm.

Weather Summary

Thursday Night
Mostly cloudy. Trace amounts of snow. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday
Cloudy. 2 to 5 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -5 °C. .

Saturday
Cloudy. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 1900 m.

Sunday
Mostly cloudy. 5 to 15 cm of snow at treeline. 40 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1900 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.