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Avalanche Forecast

Dec 12th, 2024–Dec 13th, 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
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
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, North Okanagan, Rossland, Shuswap, South Okanagan, Valhalla, Ymir.

Assess steep terrain for wind slab and ride one at a time.

The best riding conditions will be found in wind sheltered terrain.

Confidence

Moderate

Avalanche Summary

No significant slab avalanches were reported over the past 3 days. Natural and skier triggered dry loose avalanches up to size 1.5 have been reported from steep terrain where the recent snow hasn’t bonded to the underlying crust.

Snowpack Summary

Wind affected snow may be found in exposed terrain at higher elevations. A new surface hoar layer can be found on or near the surface in sheltered terrain.

10 to 30 cm overlies a crust to 2200 m. The extent of this crust is uncertain in the alpine in the Selkirks. Where this crust is not present a layer of surface hoar may be found.

The mid and lower snowpack is well-settled, dense, and generally strong. Treeline snow depths range from 100 to 150 cm.

Weather Summary

Thursday Night

Mix of clear skies and cloud with trace amounts of snow expected. 5 to 15 km/h south ridgetop wind. Treeline temperature -8 °C.

Friday

Mostly cloudy with up to 5 cm of snow possible. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Saturday

Cloudy with up to 20 cm of snow expected. 25 to 40 km/h south ridgetop wind. Freezing level rising to 1500 m.

Sunday

Cloudy in the morning and mix of sun and cloud in the afternoon. Up to 15 cm of snow possible by early morning. 20 to 40 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • Make observations and continually assess conditions as you travel.

Avalanche Problems

Wind Slabs

Rider triggerable wind slabs may linger in exposed terrain near ridge crests. Where the surface hasn't been wind affected dry loose avalanches are possible.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 1.5