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Avalanche Forecast

Archived

Dec 30th, 2025–Dec 31st, 2025

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
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 Inland, Kitimat, Nass, Rupert, Seven Sisters, Shames, Howson.

Only simple terrain with no exposure to overhead hazard is suitable for the current conditions. 

Stay out of avalanche terrain.

Confidence

Moderate

  • Uncertainty is due to difficult to forecast freezing levels.

Avalanche Summary

A natural avalanche cycle is expected to occur throughout the duration of this storm.

Several size 1.5-2.5 natural storm slabs and wet loose avalanches have been reported in the Skeena River Corridor on Sunday and Monday.

Snowpack Summary

Up to 80 mm of rain has fallen over the past 36 hours, accompanied by strong southwest winds. This new precipitation has fallen on up to 50 cm of previous storm snow that sits on a layer of facets from late December.

Snowpack depth is up to 300 cm at treeline.

Weather Summary

Tuesday Night
Cloudy. 1 to 5 cm of snow at treeline. 50 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 m.

Wednesday
Cloudy. 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1100 m.

Thursday
Mostly cloudy. 1 to 3 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 600 m.

Friday
Mostly cloudy. 10 to 15 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 400 m.


More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid the runout zones of avalanche paths. Avalanches could run full path.
  • Use increased caution at all elevations. Storm snow is forming touchy slabs.
  • Keep in mind that the high density of wet avalanches can make them destructive.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.