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Archived

Avalanche Forecast

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

Regions: Babine, Howson, Hudson Bay, Kispiox, Microwave-Sinclair, North Bulkley, Northwest Inland, South Bulkley, Telkwa.

Stick to mellow slopes that are sheltered from the wind to find the best riding and lowest avalanche danger.

Extra caution is required due to the uncertain strength of buried weak layers.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported, but reports have been extremely limited.

With recent snow available for transport, the forecasted strong wind could make human-triggered wind slab avalanches likely.

If you head to the backcountry please consider submitting your observations to the Mountain Information Network.

Snowpack Summary

Forecasted strong southwesterly winds are expected to build reactive wind slabs on leeward north and east facing slopes.

40 to 70 cm of recent storm snow is sitting on top of various snow surfaces. These include small facets and/or surface hoar in sheltered areas, and heavily wind-affected snow in exposed terrain.

Two surface hoar layers can be found in the middle of the snowpack: One down 60 to 80 cm and another down 60 to 110 cm at treeline.

Deeper in the snowpack, a rain crust from early November seems to be bonding well to overlying layers.

Alpine snow depths vary greatly across the region and from aspect to aspect.

Weather Summary

Sunday Night

Cloudy with 0 to 5 cm of snow. 40-50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Monday

Cloudy with light rain up to treeline and 3 to 5 cm of snow above. 45-60 km/h southwest ridgetop wind. Treeline temperature 0°C.

Tuesday

Cloudy with moderate rain below 1750 m. 30-40 km/h southwest ridgetop wind. Treeline high 3 °C.

Wednesday

Cloudy with light rain below 2000 m. 20-35 km/h southwest ridgetop wind. Treeline low -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for larger than expected storm slabs due to buried surface hoar.
  • In times of uncertainty, conservative terrain choices are our best defense.

Avalanche Problems

Wind Slabs

Strong southwest winds are redistributing 30-50 cm of storm snow. Buried weak layers below the new snow may create larger than expected avalanches.

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

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1.5 - 3