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Avalanche Forecast

Archived

Feb 5th, 2022–Feb 6th, 2022

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

Vancouver Island.

Carefully assess the wind effect as you gain elevation. Rider triggerable wind slab could form throughout the day.

Confidence

Moderate -

Weather Forecast

Saturday night: no new snow expected. Moderate southwest winds and freezing levels falling to 900m.

Sunday: light precipitation bringing 5 to 10 cm of snow. Moderate to strong winds from the south and freezing levels around 1600 m.

Monday: light precipitation, trace amounts of snow, and light to moderate southwest winds. freezing level around 1300 m.

Tuesday: light snow throughout the day bringing up to 5 cm. Moderate to strong southwest winds and freezing levels around 1200m.

Avalanche Summary

On Thursday our field team observed several loose wet avalanches up to size 1.5 in the treeline and above. Ski cutting produced small wet slabs running on a crust down 15cm at 1100m.

Snowpack Summary

up to 15 cm of recent snow has formed wind slab in exposed alpine terrain. Below this a 1 cm thick crust can be found up to 1400 m.

Another crust from late January exists down 30 to 50 cm that extends up to mountain tops. This crust is over 10 cm thick.

Moist snow surfaces can be found at and below treeline from rain and warm temperatures.

The mid and lower snow pack is well settled but shallow at low elevations leaving many hazards just below the surface.

Terrain and Travel

  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

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.