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Avalanche Forecast

Archived

Dec 1st, 2024–Dec 2nd, 2024

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 unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky, South Coast, South Coast Inland, Brandywine, Garibaldi, Homathko, Powell River, Spearhead, Tantalus, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron, Birkenhead, Coquihalla, Duffey, Harrison-Fraser, Manning, Skagit, South Chilcotin, Stein, Taseko.

While conditions are generally safe, watch for avalanches in extreme terrain or steep wind-loaded slopes.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the last 7 days.

Please consider sharing any observations you have on the Mountain Information Network.

Snowpack Summary

A melt-freeze crust is expected on all slopes that saw the sun on Sunday and low-elevation shaded slopes.

In sheltered spots at treeline, 5 to 10 cm of snow may be sitting on large surface hoar crystals.

The most prominent of several melt-freeze crusts in the lower snowpack is 100 - 120 cm deep and decomposing.

Snowpack depth is around 100 to 140 cm at treeline and decreases rapidly below about 1500 m.

Weather Summary

Sunday Night

Clear. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2700 m.

Monday

Sunny. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2700-3200 m.

Tuesday

Sunny. 10 km/h west ridgetop wind. Treeline temperature 4 °C. Freezing level 3000 m.

Wednesday

Mostly sunny. 10 to 20 km/h south ridgetop wind. Treeline temperature 5 °C. Freezing level 2700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • 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.