Archived

Avalanche Forecast

Apr 30th, 2012–May 1st, 2012

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

2: Moderate

The avalanche danger rating below treeline will be moderate

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

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

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Mild temperatures and rain may cause the snowpack to get weaker and will increase the avalanche danger, especially at treeline and below.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Avalanche Problems

Loose Wet

Expect the firm melt freeze crust to deteriorate rapidly with the warm rainy conditions in the Forecast. Loose snow avalanches are possible below treeline if we receive heavier than predicted showers.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

Large triggers such as cornice failure or serac fall can trigger very large avalanches. Recently, ice fall released a large slab avalanche on a steep north facing glacial slope on Mt Andromeda.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4