Avalanche Forecast

Issued: Jan 25th, 2025 4:00PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is below threshold. Known problems include Wind Slabs and Persistent Slabs.

Avalanche Canada Avalanche Canada, Avalanche Canada

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It's important to have patience during uncertain times.

Buried weak layers may still be triggered by riders. Avoid slopes that are connected to larger features above.

Summary

Confidence

Moderate

Avalanche Summary

No avalanches have been reported since Jan 22nd.

Early in the week there were two very large (size 3) avalanches triggered by cornices falling on a slope and triggering a weak layer, suspected to be the early December crust.

Snowpack Summary

Exposed terrain has been heavily wind-affected. In sheltered areas, there is 20 to 30 cm of settling soft snow.

A weak layer of facets and a crust from early December is buried 80 to 140 cm deep. This layer exists on all aspects up to around 1700 m and produced large avalanches last weekend.

Weather Summary

Saturday Night

Cloudy. 40 to 80 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Sunday

Mostly cloudy. 40 to 80 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday

A mix of sun and cloud with 5 to 10 cm of snow. 50 to 80 km/h south ridgetop wind. Treeline temperature -3 °C.

Tuesday

Cloudy with 5 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

Problems

Wind Slabs

An icon showing Wind Slabs

Strong wind will continue to build slabs in lee terrain.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2.5

Persistent Slabs

An icon showing Persistent Slabs

The early December weak layer continues to be triggerable in shallow, thin-to-thick areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 3.5

Valid until: Jan 26th, 2025 4:00PM

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