Archived

Avalanche Forecast

Feb 5th, 2012–Feb 6th, 2012

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

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

Alpine

1: Low

The avalanche danger rating in the alpine will be low

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: Banff Yoho Kootenay.

While still under the influence of the high pressure weather system, expect minimal change. The current conditions do not preclude anomalous situations high in the alpine on steep terrain features. See avalanche in problem one.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Avalanche Problems

Wind Slabs

Windslabs exist up to a metre thick on lee slopes in the alpine. Solar aspects have greater likelihood of natural activity in the PM. Skiers triggered a size 2 avalanche, SW aspect high on Mt. Balfour. See picture @ acmg.ca/mcr.

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

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 2 - 3

Cornices

These are weakening in the sun with the inverted temperatures, and numerous collapses have been reported over the last 24 hours which can entrain wet snow, or be a big enough trigger to initiate a slab avalanche.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 2 - 3