Archived

Avalanche Forecast

Apr 20th, 2012–Apr 21st, 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

1: Low

The avalanche danger rating below treeline will be low

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

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

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Jasper.

Extended sun and warm temperatures will cause the avalanche danger to rise in the afternoon. Start and finish your trip early.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

on Saturday

Avalanche Problems

Wind Slabs

Up to 10cm of warm snow is being redistributed by gusting SW winds and forming windslabs on NE to E slopes. Expect Saturday's sun to produce some activity from this recent snowfall.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Loose Wet

Saturday's sun should produce loose snow avalanches on solar aspects. Expect some more of this activity on Sunday with warm temperatures and freezing levels up to 3000 meters.

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

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

This layer may be triggered from a thin spot. Loose snow slides may step down to this layer in the warmest part of the day.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4