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Avalanche Forecast

Archived

Nov 27th, 2022–Nov 28th, 2022

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

Regions

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

Assess conditions as you travel - any fresh snow is likely hiding early-season hazards.

Confidence

Moderate

Avalanche Summary

Observations are limited at this time of year. No new avalanches have been reported or observed. If you do head into the backcountry consider submitting a MIN report!

Snowpack Summary

A dusting of 5-15 cm snow came in late Saturday adding to a building winter snowpack. Depths at upper elevations snowpack grow to 80 cm, where snow begins to cover surface roughness. Below treeline is below the threshold for avalanches.

Weather Summary

Sunday night

Cloudy, clearing overnight. Moderate north wind, treeline temperatures dropping to -10 C, and freezing level valley bottom.

Monday

Sunny and cold. Moderate north wind. Treeline high temperature around -4 C. Freezing level 300 m.

Tuesday

Mix of sun and cloud. Increasing southwest wind. Treeline temperature around -4 C.

Wednesday

Incoming precipitation and wind, 15-30 mm, strong south wind, treeline temperatures rising to -2 C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Exercise caution on steep, unsupported slopes.

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.