Avalanche Forecast

Issued: Mar 22nd, 2021 3:00PM

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

Avalanche Canada Mikey, Avalanche Canada

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Up to 10cm of snow expected by Tuesday morning along with cooler weather.   

Summary

Confidence

Moderate - Uncertainty is due to the track & intensity of the incoming weather system.

Weather Forecast

Monday evening's storm is forecast to leave us with 5-10cm of snow. 

Tuesday: Mix of sun and cloud, Low of -16c and a high of -5c in the alpine. Winds are expected to increase during the day to strong westerly. The freezing level will be around 200m. 

Avalanche Summary

No new avalanches were observed.

Snowpack Summary

There should be 5-10cm of new snow by Tuesday morning for up to 20cm of snow in the past 48hrs. This amount can vary quite a bit and be very localized with the convective Spring storms, so use your mountain sense and evaluate each area carefully. The two main things to keep an eye out for are: 

1) Newly formed wind slabs, especially near ridge lines and lee features.

 2) Sluffing in steep terrain with the new snow as well as spindrift off higher cliffs.

If the sun is out, expect the new snow to change quickly on solar aspects.

Terrain and Travel

  • Closely monitor how the new snow is bonding to the crust.
  • Be carefull with sluffing in steep terrain, especially above cliffs and terrain traps.

Problems

Wind Slabs

An icon showing Wind Slabs

Isolated windslabs in lee alpine features

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 23rd, 2021 3:00PM

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