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Avalanche Forecast

Dec 31st, 2023–Jan 1st, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Boundary, East Stikine, Ningunsaw, Northwest Coastal, Stewart, West Stikine.

Recent cooling has likely created a surface crust at lower elevations. Storm snow at upper elevations is being redistributed by the wind into exposed lee terrain.

Confidence

Moderate

Avalanche Summary

On Friday and Saturday there were numerous reports of a naturally and explosives triggered size 2-3 wind and storm slabs in alpine terrain on northwest through northeast aspects. There were also numerous reports of lower elevation wet loose and wet slab avalanches both naturally and explosives triggered size 1-3. There were also several reports of glide slabs releasing naturally size 1-2.

Snowpack Summary

Below 1400 m the snow surface has either frozen into crust or is wet.

Recent snowfall amounts across the region range from 30 - 60 cm at upper elevations. This snow has been redistributed by southeast through southwest wind likely forming thick wind slabs in lee terrain.

A layer of facets buried at the end of November can be found near the ground.

The snowpack depth varies between 200 and 300 cm at treeline.

Weather Summary

Sunday Night

Mostly cloudy with isolated flurries, south west wind 15-25 km/h, treeline temperature -7 °C.

Monday

Mainly cloudy with sunny breaks, south southwest wind 20-30 km/h, treeline temperature -5 °C.

Tuesday

Cloudy with 2-5 cm of snow, southeast wind 15-30 km/h, treeline temperature -6 °C.

Wednesday

Cloudy with 5-10 cm of snow, southwest wind 20-40 km/h, treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind affected terrain.
  • Avoid freshly wind loaded terrain features.

Avalanche Problems

Wind Slabs

30-60 cm of snow has accumulated over the previous 2 days. This snowfall was accompanied by moderate to strong southeast and southwest wind. Expect to find thick wind slabs in lee terrain.

Aspects: North, North East, East, South East, South, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2.5