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Archived

Avalanche Forecast

Dec 30th, 2024–Dec 31st, 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
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, Hudson Bay, Kispiox, North Bulkley, Northwest Inland, South Bulkley, Telkwa.

A problematic weak layer has potential to surprise riders in features where a cohesive slab has formed over it.

Confidence

Moderate

Avalanche Summary

Our field team observed several slab avalanches up to size 2 in the Telkwas on Monday, mostly in wind-loaded lees, all running on the December crust.

Snowpack Summary

A dusting of new snow blankets heavily wind-affected surfaces in the alpine and at treeline. Pockets of soft snow can be found in sheltered, lower angle terrain.

A significant weak layer is just reaching threshold with 30 to 70 cm of snow sitting above it, depending on wind loading patterns. The layer involves weak grains of surface hoar and facets sitting over a hard crust. This layer is likely to persist as an avalanche problem as it gets buried deeper.

The remainder of the snowpack is well settled and bonded.

Weather Summary

Monday night

Mainly cloudy. Isolated flurries with minimal accumulation. <20 km/h variable wind. Treeline temperature -9 °C.

Tuesday

Cloudy. Isolated flurries with minimal accumulation. 20 to 40 km/h southeast wind. Treeline temperature -12 °C.

Wednesday

Mostly sunny. 20 to 40 km/h east wind. Treeline temperature -15 °C.

Thursday

Cloudy. Isolated flurries with minimal accumulation. 40 to 60 km/h south ridgetop wind. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Be especially cautious as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried weak layers.

Avalanche Problems

Persistent Slabs

A widespread crust with weak grains overtop is buried 30-70 cm deep. This problem is specific to areas where a cohesive slab has formed over the layer, such as wind-loaded lee features.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2