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

Regions

South Coast, North Shore, Sasquatch, Sky Pilot, Tetrahedron.

Cold snow is available for transport, moderate winds will build wind slabs directly lee of ridges and high points at upper elevations.

Don't commit to steep slopes if snow feels dense.

Confidence

Moderate

  • Uncertainty is due to rapidly fluctuating freezing levels.

Avalanche Summary

No new avalanche activity reported.

Human-triggered avalanche activity has decreased as recent storm slabs continue to settle. However, cold surface snow remains available for transport, and forecasted moderate westerly winds may form small wind slabs in exposed terrain features.

Freezing levels are expected to rise through the day and into Tuesday. As temperatures increase, the likelihood of wet loose avalanche activity will also increase.

Snowpack Summary

Recent storm snow has been redistributed by variable direction, moderate winds at upper elevations and remains unconsolidated in sheltered terrain.

Roughly 120 to 140 cm of settling snow sits on the December 16 crust.

At lower elevations this recent snow overlies bare ground.

Weather Summary

Sunday Night
Mostly cloudy. 30 km/h west ridgetop wind. Treeline temperature -3 °C.


Monday
Mostly sunny. 30 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level increasing through the day.

Tuesday
Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 2800 m.

Wednesday
Mainly cloudy. 2 to 5 mm of rain at treeline. 30 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2200 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.
  • Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at 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.