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Avalanche Forecast

Archived

Feb 17th, 2025–Feb 18th, 2025

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

Regions

Sea To Sky, South Coast Inland, Homathko, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Assess for new wind slabs as you gain elevation

Small wind slabs could be sensitive to rider traffic due to the underlying weak layers

Confidence

High

Avalanche Summary

No slab avalanches have been reported in the past 4 days. Skier triggered dry loose avalanches in steep terrain continue to be reported.

Snowpack Summary

Around 5 cm of new snow has fallen with variable wind, potentially forming new wind slab on all aspects. In sheltered terrain this new snow may overlie soft, faceted snow or surface hoar. In exposed terrain a sun crust or wind affected snow is likely on the surface.

20 to 40 cm overlies a weak layer from late January. In most areas, it is a hard slippery crust, however, on shady, upper-elevation slopes, it may be faceted grains or surface hoar.

The mid and lower snowpack is strong and bonded.

Weather Summary

Monday Night

Partly cloudy. 10 km/h west ridgetop wind. Treeline temperature -7 °C.

Tuesday

Mostly cloudy with trace amounts of snow possible. 10 to 20 km/h south ridgetop wind. Treeline temperature -4 °C.

Wednesday

Cloudy with 1 to 3 mm of mixed precipitation. 20 to 40 km/h south ridgetop wind. Freezing level rising to 1800 m.

Thursday

Mostly cloudy with 1 to 3 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.

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.