Avalanche Forecast

Issued: Mar 10th, 2022 4:00PM

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

Avalanche Canada wlewis, Avalanche Canada

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Light snow and strong winds brings fresh potential for small but reactive wind slabs to build around ridgeline and terrain features. 

Summary

Confidence

Moderate - Uncertainty is due to the extreme variability of wind effect on the snowpack.

Weather Forecast

THURSDAY NIGHT: Cloudy, up to 3 cm snow, moderate to strong southwest wind, freezing levels at valley bottom. 

FRIDAY: Cloudy, up to 5 cm snow, strong southwest wind. Freezing level valley bottom, alpine high -9 °C.

SATURDAY: Cloudy, up to 5 cm snow, moderate to strong west and southwest wind. Freezing level valley bottom, alpine high -6 °C.

SUNDAY: Cloudy with flurries. Light to moderate southeast winds. Freezing levels at valley bottom. Alpine high of -16. 

Avalanche Summary

No new avalanches have been reported since Saturday. 

If you head out into the mountains, please let us know what you see on the Mountain Information Network. 

Snowpack Summary

Light snowfall will bury heavily wind affected surfaces. Soft snow can only be found in terrain that is very sheltered. On steep, sun-affected terrain new snow may sit over a crust.

Another crust is buried 20-40cm deep on south facing terrain. Other aspects hold more dense snow at this depth from previous strong winds. 

The lower snowpack is well bridged by the layers above, and it is unlikely that avalanches will be triggered on weak, sugary crystals near the ground at this time. 

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Avoid slopes that sound hollow or drum-like.

Problems

Wind Slabs

An icon showing Wind Slabs

Light snowfall and strong winds may form fresh slabs throughout the day. 

Old hard wind slabs might still be reactive to human triggers or natural triggers like large cornice falls. Avoid steep, unsupported slopes that sound drum-like or hollow. 

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 11th, 2022 4:00PM

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