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Avalanche Forecast

Archived

Dec 22nd, 2024–Dec 23rd, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Northwest Inland, Boundary, Kispiox, Ningunsaw, Ningunsaw, Ningunsaw, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

Continually assess conditions as you move through terrain

Strong southerly winds may form reactive wind slabs on leeward slopes at treeline and above.

Confidence

Moderate

Avalanche Summary

No recent slab avalanches have been reported in the region, only sluffing in steep terrain has been reported.

Observations have been limited. Please consider sharing your observations through the Mountain Information Network.

Snowpack Summary

By mid day on the 22nd up to 10 cm of new snow may have fallen. This new snow will be accompanied by strong southerly winds forming deeper deposits on northerly aspects. This new snow will fall on an already heavily wind affected upper pack.

The crust from early December is now buried 20 to 40 cm. In some areas, large surface hoar crystals are found at this interface. We are trying to track this surface hoard distribution across the region - most recently, the layer was reactive to skiers in the Ningunsaw area.

Check out this helpful MIN report

Weather Summary

Sunday Night

Cloudy with up to 5 cm of snow. 25 to 50 km/h southeast ridgetop wind. Treeline temperature -2 °C.

Monday

Mix of sun and cloud with up to 5 cm of snow. 20 to 50 km/h south ridgetop wind. Treeline temperature -2 °C.

Tuesday

Mix of sun and cloud with up to 5 cm of snow. 30 to 70 km/h south ridgetop wind. Treeline temperature -1 °C.

Wednesday

Cloudy with up to 5 cm of snow. 30 to 60 km/h southeast ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for slabs before you commit to it.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.