Avalanche Forecast

Issued: Mar 18th, 2022 4:00PM

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

Avalanche Canada TRettie, Avalanche Canada

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Carefully assess the wind slab hazard as you gain elevation. Rider triggerable wind slab will likely build throughout the day.

Summary

Confidence

Moderate -

Weather Forecast

Friday night: around 5 cm of new snow with moderate southwest winds. Low of -2 at 1500 m.

Saturday: mostly cloudy with 5 to 15 cm of new snow expected. Light to moderate southerly winds. Freezing levels rising to 1500 m. 

Sunday: mostly cloudy with light to moderate southwest wind. Freezing level around 1200 m. 5 cm of new snow expected.

Monday: cloudy with around 5 cm of new snow expected and moderate southwest winds. Freezing level rising to 1500 m.

Avalanche Summary

Over the past couple days several natural storm and wind slab avalanches up to size 1.5 were observed in the region , Most of this avalanche activity was on north and east aspects. A small natural glide slab was also reported. 

Snowpack Summary

New wind slab will likely form on northerly aspects throughout the day on Saturday. a melt-freeze crust exists on sun-exposed aspects.  

In the north of the region, a crust/facet interface from February sits 30-60 cm deep and had been most problematic on north to northeast aspects around 1900-2100 m. This layer produced a number of avalanche in early March but is now considered dormant. 

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.

Problems

Wind Slabs

An icon showing Wind Slabs

New wind slab could form throughout the day on Saturday in exposed treeline and alpine. 

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 19th, 2022 4:00PM

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