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Avalanche Forecast

Archived

Dec 30th, 2025–Dec 31st, 2025

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

Regions

Northwest Coastal, Boundary, Stewart, Ningunsaw.

Human triggered avalanches are likely.

Seek out simple terrain with no exposure to overhead hazard.

Confidence

Moderate

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

Avalanche Summary

Over the past few days, numerous storm slab and dry loose avalanches up to size 2 have been reported across this region, occurring on all aspects and at all elevations.

Snowpack Summary

70-100 cm of new snow has fallen over the past 48 hours with mild temperatures. This new snow is burying a previously wind-affected and faceted surface layer from late December. New snow is expected to bond poorly to the previous surface.

Treeline snow depths exceed 300 cm.

Weather Summary

Tuesday Night
Cloudy. 5 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 800 m.

Wednesday
Mostly cloudy. 1 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level 300 m.

Thursday
Mostly sunny. 10 km/h southeast ridgetop wind. Treeline temperature -10 °C. Freezing level 0 m.

Friday
Mix of sun and clouds. 1 to 5 cm of snow. 10 km/h southeast ridgetop wind. Treeline temperature -10 °C. Freezing level 0 m.

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.
  • Keep your guard up as storm slabs may remain sensitive to human triggering.

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.