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Avalanche Forecast

Archived

Dec 30th, 2025–Dec 31st, 2025

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

Regions

Sea To Sky, Brandywine, Garibaldi, Homathko, Powell River, Spearhead, Tantalus, Sky Pilot.

Continuously assess conditions as you move through terrain.

Where the snow surface is dry, wind slabs are possible; where it is wet, loose wet avalanches are possible.

Confidence

Moderate

  • Uncertainty is due to rapidly fluctuating freezing levels.

Avalanche Summary

Explosives and ski cutting have produced small dry loose and wind slab avalanches in steep features over the past couple days.

Snowpack Summary

Surface snow is variable, on steep solar facing slopes moist snow is expected and on north facing slopes above 2000 m 20 to 40 cm of dry, wind affected snow can be found.

Within the upper snowpack a surface hoar layer can be found roughly 30 cm deep in sheltered treeline terrain.

A crust buried on December 16th is roughly 150 cm deep. Above 2200 m, this crust is absent and an old crust complex and faceted snow from November is found at the base of the snowpack.

Weather Summary

Tuesday Night

Mostly clear skies. 30 km/h southwest ridgetop wind. Treeline temperature 2°C. potential for below freezing layer near valley bottoms.

Wednesday

Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature 2°C. Freezing level 2000 m.

Thursday

Mix of sun and clouds. 20 km/h south ridgetop wind. Treeline temperature 2°C. Freezing level 1900 m.

Friday

Mostly cloudy. 5 to 10 cm of snow at treeline and above, rain at low elevation. 30 km/h south ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • 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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.