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Avalanche Forecast

Archived

Dec 4th, 2025–Dec 5th, 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 possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Northwest Inland, Kispiox, Microwave-Sinclair, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

New snow will add load to buried weak layers, making avalanches more likely as the snow piles up through the day.

Retreat to mellower terrain if you find signs of instability.

Confidence

Low

Avalanche Summary

On Tuesday, our field team had concerning snowpack test results on the same surface hoar layer (buried in mid November) related to this Mountain Information Network report.

Snowpack Summary

10 to 15 cm of new snow will fall throughout the day burying previously wind affected snow in the alpine and open areas.

In sheltered areas, expect to find soft snow over a layer of weak, feathery crystals buried 20 to 40 cm.

A crust formed in November and is buried at about 60 to 90 cm with small facets above it.

At treeline, the snow is about 100 cm deep, snowpack depth gradually thins as elevation decreases to 30 cm at valley bottom.

Weather Summary

Thursday Night
Mostly cloudy. 1 mm of precipitation as snow or rain at treeline. 30 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1100 m.

Friday
Cloudy. 10 to 15 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 700 m.

Saturday
Mostly cloudy. 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 300 m.

Sunday
Mostly cloudy. 5 to 15 cm of snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent 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.