Archived

Avalanche Forecast

Apr 29th, 2012–Apr 30th, 2012

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

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

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Alpine

1: Low

The avalanche danger rating in the alpine will be low

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Regions: Jasper.

Mild rainy weather for the next few days will increase the avalanche hazard especially treeline and below.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain on Monday

Avalanche Problems

Loose Wet

Expect a moderate melt freeze crust to form Sunday night that will deteriorate rapidly with the warm rainy conditions forecast for Monday. 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