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Archived

Avalanche Forecast

Dec 6th, 2023–Dec 7th, 2023
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
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

Regions: Babine, East Stikine, Hudson Bay, Kispiox, Microwave-Sinclair, Ningunsaw, North Bulkley, Northwest Inland, South Bulkley, Telkwa, West Stikine.

Fresh storm snow sits on a reactive and widespread layer of surface hoar.

Be cautious around roll-overs, especially in wind-loaded areas.

Confidence

Moderate

Avalanche Summary

Evidence of a natural avalanche cycle (up to size 2.5) from the recent storm was reported in the Hudson Bay Range. On Wednesday, debris of wet loose, wind and storm slab avalanches were observed depending on aspects and elevations.

If you do go into the backcountry, consider submitting a Mountain Information Network report.

Snowpack Summary

The recent storm left about 25-40 cm throughout the region. Southerly winds had undoubtedly redistributed it at higher elevations in some areas, whereas in others wind transport seemed minimal. Under this new storm snow, a widespread layer of surface hoar has been preserved and shows signs of reactivity on a variety of aspects and elevations.

The snowpack was wet from 1200 m and below on Tuesday and crusty conditions will develop soon if not already.

The snowpack remains generally shallow, with early-season hazards below the snow surface. The height of snow at treeline is approximately 50-150 cm.

Weather Summary

Wednesday Night

Partly cloudy, no precipitation, westerly alpine wind 20 km/h, treeline temperatures reach -10 °C, freezing level falling to valley bottom by night.

Thursday

Increasing clouds, no precipitation, southwesterly alpine wind 20 km/h, treeline temperatures reach -8 °C.

Friday

Partly cloudy, no precipitation, westerly alpine wind 40-60 km/h, treeline temperatures reach -6 °C.

Saturday

5-10 cm of snow, southwesterly alpine wind 60-90 km/h, treeline temperatures reach -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully assess open slopes and convex rolls where buried surface hoar may be preserved.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Expect shallow snow cover that barely covers ground roughness.

Avalanche Problems

Storm Slabs

Fresh storm slabs will remain a concern, especially where a widespread layer of surface hoar has been preserved. Rider-triggering is possible around leeward terrain features, where slabs may be more reactive.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2