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Avalanche Forecast

Archived

Dec 5th, 2025–Dec 6th, 2025

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

Regions

Northwest Coastal, Kitimat, Nass, Rupert, Seven Sisters, Shames, Stewart, Howson.

New snow throughout the day will increase the likelihood of avalanches.

Treat the hazard as considerable if there is more than 20cm of new snow where you are.

Confidence

Low

Avalanche Summary

No new avalanches have been reported recently.

If you are getting out in the backcountry, consider making a post on the MIN (Mountain Information Network). You can share riding conditions, avalanche or snowpack observations, even just a photo or two.

Snowpack Summary

Heavy snowfall could add up to 20 cm to the upper snowpack, making 70 cm of snow that is sitting on a crust.

Buried surface hoar crystals may still be present in isolated sheltered areas.

The mid and lower snowpack is expected to be strong, with frozen crusts or dense, settled snow.

At treeline around Terrace we expect a snow depth of 100-130 cm. 200-300 cm around Stewart. Snowpack depth gradually thins as elevation decreases to be 50 cm at valley bottoms.

Weather Summary

Friday Night
Cloudy. up to 5 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 600 m.

Saturday
Cloudy. 6 to 12 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.

Sunday
Cloudy. 15 to 30 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1100 m.

Monday
Cloudy. 15 to 30cm of snow. 20 to 40 km/h southwest ridgetop wind Treeline temperature 1 °C. Freezing level 1500 m.



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.
  • Investigate the bond of the recent snow before committing to your line.

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.