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Avalanche Forecast

Archived

Jan 2nd, 2025–Jan 3rd, 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.
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, Spearhead, Tantalus.

A small increase in wind speeds could quickly increase avalanche danger, so stay alert and monitor local conditions.

Confidence

High

Avalanche Summary

No recent avalanche activity has been reported.

Explosive-controlled cornices over the past couple of days have not triggered any slab avalanches below.

Snowpack Summary

Low-density snow on the surface sits above an upper snowpack that gets progressively denser with depth. Wind-affected surfaces exist in exposed terrain at higher elevations.

While the mid and lower snowpack is generally well-settled, two crust/facet layers will be closely monitored as the snow load above continues to accumulate. These layers have a variable distribution and have not resulted in any recent avalanche activity.

Weather Summary

Thursday Night

Cloudy with 0 to 2 cm of snow. 0 to 10 km/h south ridgetop wind. Treeline temperature -5 °C.

Friday

Cloudy with 0 to 2 cm of snow. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -3 °C (above-freezing temperatures at treeline may occur in the south, around the Squamish area).

Saturday

Cloudy with 5 to 10 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -3 °C.

Sunday

Cloudy with 5 to 10 cm of snow. 10 to 30 km/h west ridgetop wind. Treeline temperature -1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Avoid areas where the snow feels stiff and/or slabby.

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.