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Archived

Avalanche Forecast

Nov 30th, 2017–Dec 1st, 2017
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: 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.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

Friday: 5-10 cm new snow with freezing levels around 900 m. Strong southwesterly winds.Saturday: Around 5 cm new snow with freezing levels around 700 m. Moderate southerly winds.Sunday: Mostly dry with some sunny breaks. Freezing levels around 600 m. Light northwesterly 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.

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

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2