Avalanche Forecast

Issued: Feb 1st, 2025 4:00PM

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

Avalanche Canada Avalanche Canada, Avalanche Canada

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Recent snow will be reverse loaded.

Avoid areas where the wind is actively depositing snow.

Summary

Confidence

Moderate

Avalanche Summary

No avalanches have been reported since Tuesday.

During the last avalanche cycle, wind slabs were able to step down to weak layers from December.

Snowpack Summary

10 to 30 cm of new snow is now above previous highly variable surfaces. Strong winds from all directions continue forming pockets of wind slabs.

This snow has fallen on a crusts on south-facing slopes, and in places, surface hoar at lower elevations.

A weak layer of facets and crust from early December is buried approximately 50 to 100 cm deep. This layer likely contributed to avalanches last weekend but should be less reactive under current conditions, primarily posing a concern on steep rocky slopes.

Weather Summary

Saturday Night

Partly cloudy with flurries. 20 to 40 km/h east ridgetop wind. Treeline temperature -21 °C.

Sunday

Mostly sunny. 30 to 50 km/h northeast ridgetop wind. Treeline temperature -22 °C.

Monday

Sunny. 40 to 60 km/h northeast ridgetop wind. Treeline temperature -21 °C.

Tuesday

Sunny. 40 to 60 km/h east ridgetop wind. Treeline temperature -18 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

Problems

Wind Slabs

An icon showing Wind Slabs

Wind loading has switched directions, meaning wind slabs are possible on all aspects in the alpine. At treeline strong easterly winds are building fresh slabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 2

Persistent Slabs

An icon showing Persistent Slabs

A 50 to 100 cm deep weak layer from early December may be possible to trigger on steep, rocky or convex slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Valid until: Feb 2nd, 2025 4:00PM

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