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Avalanche Forecast

Archived

Dec 31st, 2024–Jan 1st, 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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast Inland, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

While 2025 begins with a generally stable snowpack and excellent powder conditions, be cautious of lingering wind slabs in steep alpine terrain.

Confidence

Moderate

Avalanche Summary

No new avalanche activity has been reported since the weekend.

A few large wind slab avalanches were reported from this MIN report in the Matier Glacier area on Sunday.

Snowpack Summary

Generally low-density snow on the surface with minimal wind effect in all but exposed alpine terrain.

A thin crust exists in the upper snowpack, up to 1900 m, particularly in sun-affected terrain.

Another crust is buried 60 to 100 cm deep, and in sheltered terrain, a layer of surface hoar may exist just above it. There is uncertainty over its reactivity. It is more likely to be a concern in wind-affected, thin, and rocky start zones at higher elevations.

Snow depths at treeline vary between 90 to 160 cm.

Weather Summary

Tuesday Night

Partly cloudy. 0 to 10 km/h south ridgetop wind. Treeline temperature -10 °C.

Wednesday

Mix of sun and cloud. 0 to 10 km/h south ridgetop wind. Treeline temperature -10 °C.

Thursday

Partly cloudy. 10 to 30 km/h south ridgetop wind. Treeline temperature -6 °C.

Friday

Cloudy with 2 to 5 cm of snow. 10 to 30 km/h south ridgetop wind. Treeline tem[erature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid areas where the snow feels stiff and/or slabby.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

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.