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Avalanche Forecast

Archived

Dec 24th, 2025–Dec 25th, 2025

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

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

Sunshine doesn't mean stability! Santa brought a week of fresh snow that still needs time to settle.

A gift from me to you: the best and safest riding is in sheltered terrain 🎄🎁

Confidence

Moderate

  • Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.

Avalanche Summary

No new avalanches have been reported at the time of publishing, but observations have been limited by stormy weather.

Looking forward to Thursday, the recent storm snow still needs time to stabilize. Wind-loaded terrain at upper elevations will be the prime suspect for human-triggered avalanches.

Snowpack Summary

20 to 30 cm of recent storm snow overlies roughly 100 cm of new snow in the past week. Strong southerly wind has left a variety of surfaces - wind slabs and loaded pockets in lee features, scoured rock in open terrain, and storm slabs and softer snow in sheltered areas.

This new snow covers a crust that exists to at least 2200 m.

A deeper crust with associated facets, formed in mid-November, exists 50 to 150 cm below the surface.

Weather Summary

Wednesday Night
Partly cloudy. 1 to 3 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Thursday
Sunny. 10 km/h south ridgetop wind. Treeline temperature -6 °C.

Friday
Mix of sun and clouds. 3 to 5 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Saturday
Mostly sunny. 1 to 3 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -14 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.
  • Be especially cautious as you transition into wind-affected terrain.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.