Archived

Avalanche Forecast

Apr 21st, 2012–Apr 22nd, 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

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Regions: Banff Yoho Kootenay.

Loose sluffs in steep terrain or cornice falls are the two major issues. Otherwise conditions are good with normal cautions and early starts. Things will change with high temps and no overnight freeze forecast for early in the week. JBW

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Freezing levels are uncertain on Tuesday

Avalanche Problems

Cornices

With warm temperatures and high freezing levels a few large cornices have begun to fall off. Several large cornice triggered avalanches have been noted over the last few days running a long way down into the runout.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 3 - 4

Loose Wet

Loose wet and some wet slab avalanches are running in lower elevations with daytime heating and solar effect. Be sure to travel only while frozen.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3