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Avalanche Forecast

Archived

Dec 22nd, 2024–Dec 23rd, 2024

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

Regions

Vancouver Island, East Island, North Island, South Island, West Island.

Choose small, low consequence terrain.

New storm and wind slabs will likely be sensitive to rider traffic.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in several days.

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

Snowpack Summary

By early morning on the 22nd up to 40 cm of new snow may have fallen. This new snow will be accompanied by moderate southerly winds forming deeper deposits on northerly aspects.

Below treeline the snow surface is saturated from rain.

Snowpack depths at treeline vary from 200 to 250 cm.

Weather Summary

Sunday Night

Cloudy with 20 to 40 mm of mixed precipitation. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Monday

Mostly cloudy with up to 5 cm of snow. 25 to 45 km/h southeast ridgetop wind. Treeline temperature -1 °C.

Tuesday

Mostly cloudy with 10 to 25 cm of snow. 25 to 50 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Wednesday

Cloudy with 10 to 30 cm of snow. 30 to 60 km/h south ridgetop wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.