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Archived

Avalanche Forecast

Dec 5th, 2024–Dec 6th, 2024
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Bonnington, Crawford, Grohman, Kokanee, Kootenay Boundary, Kootenay Pass, Norns, Rossland, South Okanagan, Ymir.

While the snowpack is generally expected to be stable,

continually monitor and assess conditions as you travel.

Confidence

Moderate

Avalanche Summary

On Tuesday, explosives triggered wind slabs up to size 1.5. Warming temperatures and solar input resulted in small loose wet avalanches on steep south-facing slopes.

Snowpack Summary

The snow surface is highly variable and includes new surface hoar growth in many sheltered areas and heavily wind-affected surfaces in exposed terrain.

The full extent of the warming and sun is not yet known, but a sun crust is expected on steep, south-facing terrain.

The snowpack is well-settled, dense, and generally strong. A layer of buried surface hoar may be found 60 to 80 cm below the surface in some areas but generally appears to be stable.

Treeline snow depths range from 100 to 150 cm.

Weather Summary

Thursday Night

Clear. 10 km/h southwest ridgetop wind. Treeline temperature near 0 °C with a temperature inversion.

Friday

A mix of sun and cloud, increasing through the day. 20 km/h west ridgetop wind. Treeline temperature near 0 °C with a temperature inversion.

Saturday

Cloudy with 10 to 20 cm of snow. 25 to 50 km/h southwest ridgetop wind. Treeline temperature -4 °C, inversion ending.

Sunday

A mix of sun and cloud, clearing. 25 km/h northwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The snowpack is generally stable; it may be appropriate to step out into more complex terrain.
  • Make observations and continually assess conditions as you travel.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.