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Avalanche Forecast

Archived

Dec 13th, 2025–Dec 14th, 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 unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Northwest Coastal, Boundary, Stewart, Ningunsaw, Ningunsaw, Ningunsaw.

New snow and wind will make for dangerous avalanche conditions this weekend.

Confidence

Moderate

Avalanche Summary

During the storm last week, a widespread storm slab avalanche cycle was reported to size 3. The subsequent break in weather was accompanied by a sharp drop off in avalanche activity.

Natural avalanche activity is expected to renew with more snow and wind this weekend.

Snowpack Summary

20 to 30 cm of new snow this weekend accumulates over a settling upper snowpack. At upper elevations, wind has loaded new snow into deeper deposits in leeward terrain features.

In general, this season's upper elevation snowpack is shaping up as the ideal coastal snowpack; deep, strong and uncomplicated. Snowpack depths in excess of 300 cm can be found at treeline elevations.

Weather Summary

Saturday night
Cloudy. 2 to 8 cm of snow. 40 km/h southeast ridgetop wind. Treeline temperature -13 °C.

Sunday
Cloudy. 10 to 20 cm of snow. 50 km/h south ridgetop wind. Treeline temperature -10 °C.

Monday
Cloudy. 20 to 30 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Tuesday
Cloudy. 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Minimize exposure during periods of heavy loading from new snow and wind.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Don't let the desire for deep powder pull you into high consequence terrain.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

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.