Avalanche Forecast

Issued: Nov 29th, 2017 3:23PM

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

jfloyer, Avalanche Canada

South Coast Inland.

Generally the hazard comprises small wind slabs in exposed areas. If storm amounts come in greater than indicated in the weather discussion, use additional caution and modify your objectives accordingly.

Summary

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

Thursday: 5-10 cm new snow expected with freezing levels around 1000 m. Strong southwesterly winds.Friday: 5-10 cm new snow expected with freezing levels around 900 m. Moderate southwesterly winds.Saturday: Around 5 cm new snow expected with freezing levels around 800 m. Moderate southwesterly winds.

Avalanche Summary

There was a natural avalanche cycle on Sunday. So far this week, no activity has been reported, although there are not many observers out there right now. Small wind slabs are the most likely type of avalanche during over the next few days.

Snowpack Summary

Approximately 30-40 cm new snow now sits on top of a rain crust that formed during the recent wet weather. The crust is reported to be thick (15 cm) below treeline and thin (2 cm) in the alpine. Strong winds have blown snow around in exposed areas creating drifts and scoured areas. Treeline snow depths are approximately 90 cm throughout the region.

Problems

Wind Slabs

Small wind slabs are possible in steep terrain behind ridge lines. On steep slopes, the new snow may not bond well to the underlying crust.

Use ridges or ribs to avoid pockets of wind loaded snow.Use increased caution in lee areas. Recent snowfall and wind loading have created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 30th, 2017 2:00PM