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Avalanche Forecast

Archived

Dec 25th, 2025–Dec 26th, 2025

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

Regions

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

Monitor new snow amounts and reactivity and dial back your terrain choice if you see older storm layers still reacting to tests or traffic. The best, safest snow is found in sheltered terrain.

Confidence

Moderate

  • Forecast snowfall amounts are uncertain.

Avalanche Summary

On Wednesday, explosives control in the Duffey Lake corridor produced size 2 storm slab results. On the Hurley, 10 - 30 cm storm slabs became touchy to skier traffic in steep terrain, propagating far but with relatively low destructive potential.

With new snow accumulating through Friday, surface instabilities will remain a concern, particularly if Wednesday's failure plane manages to persist. Hazard will be more manageable if activity is limited to the new snow.

Snowpack Summary

About 15 cm of new snow should accumulate by end of day Friday, keeping surface instabilities active.

Strong southerly wind during recent storms has left behind wind slabs of varying age and reactivity in lee features, and exposed rock or December crust in open terrain.

After a midweek 20 to 30 cm storm, we now have roughly 110 cm settling on the mid-December crust over wet snow. This forms the basal snowpack to about 2200 m. Above this elevation, a deeper crust with associated facets, formed in mid-November, can be found just off the ground.

Check out this excellent report from Dec 20 - 23 in the Tenquille Lake area.

Weather Summary

Thursday Night
Cloudy with increasing flurries bringing 2 to 10 cm of new snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday
Mostly cloudy with easing flurries bringing about 5 cm of new snow. 10 to 20 km/h southwest ridgetop wind, easing. Treeline temperature -6 °C.

Saturday
Mostly sunny. 10 km/h northwest ridgetop wind. Treeline temperature -14 °C.

Sunday
A mix of sun and cloud with isolated flurries. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.

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.