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

Regions

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

Cold conditions are keeping storm slabs reactive for longer, especially at upper elevations.

Back off of steep terrain if you notice signs of instability like cracks in the snow surface.

Confidence

Moderate

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

Avalanche Summary

Reports have been limited. Natural and human triggered avalanche activity was reported on Friday near Cypress.

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

Saturday Night
Partly cloudy. 30 km/h west ridgetop wind. Treeline temperature -8 °C.


Sunday
Cloudy. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -5 °C.

Monday
Mix of sun and clouds. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1100 m.

Tuesday
Mix of sun and clouds. 40 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Start with conservative terrain and watch for signs of instability.
  • Investigate the bond of the recent snow before committing to your line.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.