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Archived

Avalanche Forecast

Jan 27th, 2025–Jan 28th, 2025
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
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
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, Kispiox, Ningunsaw, Northwest Coastal, Northwest Inland, Stewart, West Stikine.

Deeply buried weak layers are slow to heal and require patience.

Choose low angle slopes free from overhead hazards.

Confidence

Moderate

Avalanche Summary

On Sunday, there were a few large to very large (size 2 to 3) persistent slab avalanches that failed during the warm weather on southeast and northeast aspects.

As well as numerous small wet loose avalanches from steep slopes facing the sun.

Snowpack Summary

20 to 40 cm of soft snow has been redistributed by southwest wind. Scouring exposed areas and loading lee features. In sheltered areas, this snow may sit on a layer of weak surface hoar crystals.

Around 100 to 200 cm deep are buried weak layers from December. Consisting of crusts, facets, and/or surface hoar. These layers continue to produce large avalanches.

The lower snowpack is strong, with no layers of concern.

Weather Summary

Monday Night

Cloudy. 30 to 50 km/h west ridgetop wind. Treeline temperature -6 °C.

Tuesday

Cloudy with 5 to 10 cm of snow. 10 to 20 km/h west ridgetop wind. Treeline temperature -6 °C.

Wednesday

Mostly cloudy with 20 to 30 cm of snow overnight and 10 cm during the day. 20 to 40 km/h west ridgetop wind. Treeline temperature -8 °C.

Thursday

Mostly cloudy with 5 cm of snow. 15 km/h south ridgetop wind. Treeline temperature -11 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep terrain that is rocky and thin.
  • Avoid areas where the snow feels stiff and/or slabby.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

Avalanche Problems

Persistent Slabs

The weak layer from early December is of greatest concern in areas with shallow, thin-to-thick snowpacks and on wind-loaded north or east-facing slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3.5

Wind Slabs

Wind slabs may sit on a layer of weak surface hoar crystals and take longer than normal to heal.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2.5