Avalanche Forecast

Issued: Feb 2nd, 2022 4:00PM

The alpine rating is moderate, 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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Continue to assess the wind slab hazard as you gain elevation. Winds have varied in direction over the past few days.

Summary

Confidence

Moderate -

Weather Forecast

Wednesday night: stormy weather with moderate to strong west winds. temperatures around -2 at 1100m. up to 5cm of new snow.

Thursday: stormy weather continues with up to 10cm of snow and moderate to strong west winds. Freezing level rising to 1300m.

 

Friday: stormy with 5-15cm of snow . Strong southwest winds with extreme gusts. Freezing level rising to 1500m. 

Saturday: no new snow expected. Strong northwest winds with freezing levels around 1000m.

Avalanche Summary

Since Sunday's storm, there have been several reports of small dry loose sluffs in steep terrain (see this MIN report from Mt Allan Brooks). Several storm slab avalanches up to size 1.5 were also reported on Sunday.

Snowpack Summary

The current stormy weather will add to the wind slab problem.

Last weekends storm brought 25-40 cm of snow above 1100-1200 m (see this MIN and this MIN from Mt Elma). Below these elevations, the new snow cycled through a melt-freeze cycle. 

Strong southwest winds during Sunday's storm has since become moderate from the northwest, redistributing the recent snow into wind slabs across a range of aspects at upper elevations. Monitor for changing slab conditions as you move into wind-exposed terrain. 

The weekend storm snow sits over a thick and supportive crust that extends to mountain top. The middle and base of the snowpack are well settled and strong. Below treeline, the snowpack has receded back to marginal levels with many hazards present. 

Terrain and Travel

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.

Problems

Wind Slabs

An icon showing Wind Slabs

Current stormy weather will add to the existing wind slab problem. Winds have varied in direction so look for wind slab on all aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Feb 3rd, 2022 4:00PM