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Avalanche Forecast

Archived

Dec 28th, 2025–Dec 29th, 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.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast Inland, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Human-triggered wind slabs are possible.

Monitor for signs of instability, and avoid committing to steep slopes if the snow feels dense.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

Several human triggered size 1 to 1.5 wind slabs were reported on Saturday. These avalanches were mostly in open terrain features and steep terrain near ridge lines.

Snowpack Summary

Up to 25 cm of recent snow has been redistributed by variable winds forming isolated wind slabs on most aspects. Below this a wind affected upper snowpack exists.

Roughly 110 to 150 cm of settling snow sits on the mid-December crust.

This forms the basal snowpack to about 2200 m. Above this elevation, a deeper snowpack with a crust and associated facets, formed in mid-November, can be found just off the ground.

Weather Summary

Sunday Night
Mostly cloudy. 20 km/h west ridgetop wind. Treeline temperature -6 °C.

Monday
Mix of sun and clouds. 20 km/h west ridgetop wind. Treeline temperature -3 °C.

Tuesday
Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Wednesday
Partly cloudy. 1 cm of snow. 30 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 with wind-loaded pockets, especially near ridge crests and rollovers.
  • Wind slabs are isolated, but may remain reactive.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

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.