Archived

Avalanche Forecast

Nov 9th, 2018–Nov 10th, 2018

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

Below Threshold

The avalanche danger rating below treeline will be below threshold

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

Below Threshold

The avalanche danger rating below treeline will be below threshold

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

Below Threshold

The avalanche danger rating below treeline will be below threshold

Regions: Jasper.

Warming progression over the weekend should make for pleasant travel in the Icefields. Some Ice on the Parkway is climbable. Watch for isolated pockets of windslab or loose sluffing.

Weather Forecast

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Snowpack Summary

Deep persistent, melt-freeze crust/facet combo remains the primary concern, with an average depth of 20 to 50cm deep at tree line. This crust (Oct. 25) is expected to linger in the snowpack for sometime. Very few options for travel on skis BTL (1900m) due to low snow cover, open creeks or hidden, early season hazards.

Avalanche Summary

This previous week the Oct 25 layer has produced some large natural avalanches (up to size 2.5) through the Rockies from as far south as Kananaskis Country, north to Yoho, the Icefields, Jasper and Marmot Basin Ski Hill. Best to presume all skiable slopes have this layer and dig to assess the strength of the bond before committing to the line.Â

Confidence

Avalanche Problems

Deep Persistent Slabs

This layer is most noticeably reactive at the BTL/TL transition but lingers on all aspects at TL and above.

Early season hazards such as rocks, trees and stumps are still visible.Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2.5