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Avalanche Forecast

Archived

Nov 30th, 2025–Dec 1st, 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 unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
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, Kitimat, Nass, Rupert, Seven Sisters, Shames, Stewart, Howson.

If you can travel on mellow terrain and ridgelines to get above the rain line and find lines that are sheltered from wind, you'll be rewarded with good riding and lower avalanche danger.

Confidence

Low

Avalanche Summary

No avalanches have been reported in the region over the past few days, but observations are limited.

Looking forward to Monday, we expect that new snow, wind, and rain will make human triggered avalanches likely in some terrain.

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, or even just a photo or two.

Snowpack Summary

Up to 20 cm of new snow and moderate to strong southwest wind may be forming reactive wind slabs on leeward slopes. West of Terrace, there may be even more snow overnight, but it is also expected to be followed by rain in the morning.

Wind has varied in direction over the past few days. Expect most exposed slopes to be wind-affected.

A mid-November surface hoar layer is buried 30 to 40 cm deep in sheltered treeline terrain.

Below 1400 m, a 2 to 10 cm rain crust sits 40 to 60 cm down.

Above treeline, the snowpack is roughly 200 cm, tapering steadily with elevation to around 30 cm at valley bottom, where many early-season hazards remain just below the surface.

Check out this great MIN for more info.

Weather Summary

Sunday Night
Mostly cloudy. 10 to 20 mm of precipitation as snow or rain at treeline. 30-50 km/h southwest ridgetop wind. Average treeline temperature -2 °C.

Monday
Mostly cloudy. 4 to 10 mm of precipitation as snow or rain at treeline. 35-45 km/h west ridgetop wind. Average treeline temperature 0 °C.

Tuesday
Mix of sun and clouds. 1 to 3 mm of precipitation as snow or rain at treeline. 20 km/h west ridgetop wind. Average treeline temperature -2 °C.

Wednesday
Mix of sun and clouds. 4 to 10 cm of snow at treeline. 30 km/h southwest ridgetop wind. Treeline temperature -2 °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.
  • Avoid avalanche terrain during periods of heavy rain.
  • Be cautious of buried obstacles, especially below treeline.
  • Make observations and continually assess conditions as you travel.

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.