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Avalanche Forecast

Archived

Dec 24th, 2025–Dec 25th, 2025

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

Regions

Northwest Inland, Kitimat, Nass, Rupert, Seven Sisters, Shames, Howson.

Avoid steep slopes that have been loaded by recent wind.

Confidence

Moderate

  • Uncertainty is due to how quickly the snowpack will recover and gain strength.

Avalanche Summary

Extensive snow transport was observed during Monday’s outflow winds. While no avalanches have been reported recently, this event and ongoing winds are likely forming triggerable slabs across many elevations and aspects.

Snowpack Summary

Strong, shifting winds have heavily affected alpine and treeline terrain, building wind slabs on many aspects and in some places extending into the trees.

More than 100 cm of heavy snow fell last week, which has strengthened the snowpack and reduced the chance of triggering older layers from early December (which include buried surface hoar and crusts).

Snowpack depths exceed 350 cm at treeline.

Weather Summary

Wednesday Night
Clear skies. 10-30 km/h northeast ridgetop wind. Treeline temperature -11 °C.

Thursday
Mostly sunny. 20-30 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Friday
Mix of sun and clouds. 20-30 km/h northeast ridgetop wind. Treeline temperature -12 °C.

Saturday
Mix of sun and clouds. 2 to 3 cm of snow. 30-50 km/h south ridgetop wind. Treeline temperature -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind-affected terrain.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Investigate the bond of the recent snow before committing to your line.

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.