Avalanche Forecast

Issued: Dec 1st, 2024 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada Avalanche Canada, Avalanche Canada

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Monitor surface conditions as you travel, especially as you transition into wind affected terrain.

Summary

Confidence

Moderate

Avalanche Summary

Wind slabs continue to linger in the region, with reports indicating they are stubborn to rider triggering. On Saturday slabs were triggered on west and northeast aspects, at treeline and alpine elevation.

Forecast warm temperatures may increase reactivity of slabs.

Observations remain limited this early in the season. If you head into the backcountry, please post to the Mountain Information Network.

Snowpack Summary

Surface conditions vary from wind affected surfaces in exposed terrain at higher elevations, and settling snow in sheltered areas that may include a layer of surface hoar buried 5 to 10 cm deep.

The mid snowpack is generally well settled, with an early November crust buried 50 to 100 cm deep. This layer is understood to be more notable in the Selkirk Mountains.

Snow depths at treeline are roughly 80 to 150 cm, and decrease rapidly at lower elevations.

Weather Summary

Sunday Night

Partly cloudy. 10 to 30 km/h northwest ridgetop wind. Treeline temperatures around -10 °C.

Monday

Mostly sunny. 10 to 30 km/h west ridgetop wind. An above freezing layer will bring treeline temperatures to 0 °C.

Tuesday

Mostly sunny. 10 to 30 km/h west ridgetop wind. The above freezing layer holds treeline temperatures at 0 °C.

Wednesday

Partly cloudy. 20 to 30 km/h west ridgetop wind. The above freezing layer holds treeline temperatures at 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

Problems

Wind Slabs

An icon showing Wind Slabs

Wind slabs are still possible to trigger if you find the right spot, most likely to be found near ridgelines in steep and unsupported terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Dec 2nd, 2024 4:00PM

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