Archived

Avalanche Forecast

Nov 26th, 2016–Nov 27th, 2016

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

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

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

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

Below Threshold

The avalanche danger rating below treeline will be below threshold

Regions: Kananaskis.

Wind slabs are sensitive to human triggering. Some good skiing can be found in sheltered areas at Treeline, but prepared for a thrash to get there as the low elevation snowpack remains quite shallow.

Confidence

High -

Weather Forecast

Sunday will be mainly cloudy with no precipitation expected. Alpine temperatures should reach a high of -7 Â°C with moderate winds out of the West. No precipitation is forecast for the rest of the week.

Avalanche Summary

Numerous loose dry up to size 1.5 were observed today in very steep Alpine terrain on all aspects.

Snowpack Summary

Up to 25cm of recent storm snow is sluffing in very steep Alpine terrain. Moderate to strong winds were forming wind slabs today in the Alpine and in isolated locations at Treeline. These recent slabs were not reactive to skier traffic today, but this appeared to be changing for the worse as we left the field. At 2200m the Nov 12 crust is buried 50 to 60cm and was not reactive in numerous stability tests.

Avalanche Problems

Wind Slabs

Strong winds and recent snow has led to fresh wind slabs in the Alpine and Treeline. These slabs will be sensitive to human triggering, especially in convex or unsupported terrain..

Be careful with wind loaded pockets while approaching and climbing ice routes.Avoid freshly wind loaded features.Avoid steep lee and cross-loaded features

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Loose Dry

Recent snow and strong winds has led to frequent sluffing in steep Alpine terrain on all aspects. Ice climbers should be aware of overhead hazard.

Avoid travelling on ledges and cliffs where sluffing may have severe consequences.Be cautious of sluffing in steep terrain, particularly where the debris flows into terrain traps.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Very Likely

Expected Size: 1 - 2