Avalanche Forecast

Issued: Feb 21st, 2023 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 mbender, Avalanche Canada

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Watch for heightened avalanche conditions at upper elevations where unstable slabs may be found on wind-loaded slopes.

Summary

Confidence

High

Avalanche Summary

There are no new avalanches to report in the past few days.

Snowpack Summary

New snow at upper elevations from the past several days has accumulated over a variety of old surfaces including wind slabs in the alpine and a breakable freezing rain crust between 1100 m and 1600 m.

The mid and lower snowpack is well-settled, strong, and consolidated.

Snowpack depths are reaching 250 cm at treeline.

Weather Summary

Tuesday Night

Mainly cloudy with flurries, accumulation 3-5cm. Light east wind. Treeline temperature -5 °C. Freezing level 400 m.

Wednesday

Mainly cloudy. Light to moderate northwest wind. Treeline temperature -10 °C.

Thursday

Mix of sun and cloud. Moderate east wind. Treeline temperature -12 °C.

Friday

Mix of sun and cloud. Light northwest wind. Treeline temperature -13 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs are most reactive during their formation.

Problems

Wind Slabs

An icon showing Wind Slabs

Recent snowfall at upper elevations combined with wind switching direction is promoting the formation of new wind slabs on a variety of aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Feb 22nd, 2023 4:00PM