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Avalanche Forecast

Archived

Dec 19th, 2025–Dec 20th, 2025

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

Regions

South Coast, Powell River, North Shore, Sky Pilot, Tetrahedron.

Recent snow has significantly increased and altered the snowpack at higher elevations. Make conservative terrain choices while the new snow settles and bonds.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.
  • Uncertainty is due to the speed, direction, or duration of the wind and its effect on the snowpack.

Avalanche Summary

No recent avalanche activity has been directly observed in the past several days. However, a widespread avalanche cycle in neighbouring regions suggests that significant natural avalanche activity has likely occurred since Tuesday.

Natural avalanche activity remains possible with continued storm snow accumulation.

Snowpack Summary

Stormy conditions continue to significantly build the previously thin snowpack. Beneath the recent snowfall, the snowpack is generally well-settled, consisting of moist, dense snow.

Snow depths at the treeline are estimated to range from 50 to 100 cm.

Weather Summary

Friday night
Cloudy. 5 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Saturday
Cloudy. 20 to 25 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday
Cloudy. 20 to 40 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -4 °C.

Monday
Mostly cloudy. 30 to 50 cm of snow. 50 km/h south ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Use increased caution at all elevations. Storm snow is forming touchy slabs.
  • Don't let storm day fever lure you into consequential terrain.

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.