Avalanche Forecast

Issued: Dec 13th, 2024 4:00PM

The alpine rating is high, the treeline rating is high, and the below treeline rating is considerable. Known problems include Storm Slabs.

Avalanche Canada Avalanche Canada, Avalanche Canada

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Heavy snow and strong winds keep avalanche danger "High." Stick to low-angle, non-avalanche terrain with no overhead hazard when planning your day.

Summary

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the last 2 days. A natural avalanche cycle is expected during Saturdays storm.

Snowpack Summary

The incoming storm snow amounts are expected to average around 30 cm and in the most western reaches of the region exceed 50 cm. This new snow will accumulate on various surfaces, including surface hoar in wind-sheltered terrain at treeline and below, thin melt-freeze crust on south-facing alpine slopes, and old storm snow at higher elevations. Above 1200 m, a crust is now estimated to be down 35 to 65 cm. The mid and lower snowpack is well-settled with no layers of concern.

Weather Summary

Friday Night

Snow 10 to 25 cm. 25 to 35 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.

Saturday

Snow 30 to 50 cm. 20 to 60 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 1100 m.

Sunday

Snow 5 to 10 cm. 10-20 km/h south east ridgetop winds. Treeline temperature -4 °C. Freezing level 700 m.

Monday

Snow 5 to 10 cm . 10-20 km/h ridgetop winds. Treeline temperature -6 °C. Freezing level 500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Problems

Storm Slabs

An icon showing Storm Slabs

Expect to find new wind slabs below ridge crests on North aspect terrain as they begin to rapidly develop during periods of heavy snowfall and strong winds.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely - Very Likely

Expected Size

2 - 3

Valid until: Dec 14th, 2024 4:00PM

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