Archived

Avalanche Forecast

Apr 19th, 2012–Apr 20th, 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

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

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

Regions: Banff Yoho Kootenay.

Spring is here. The avalanche hazard will increase dramatically in the afternoon when the temperatures rise and the snow becomes moist. Sunday will be particularly warm with the freezing levels forecasted to rise to 2800 m.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Avalanche Problems

Loose Wet

The main concern in the snowpack is with wet loose snow avalanches on solar aspects in the afternoon. Pay attention to how hard of a freeze there was from the previous night and how quickly the snow is warming up. Start and finish yourr tours early.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Wind Slabs

Some forecasts call for as much as 10-15 cm of new snow on Thursday night with mod to strong southwest winds. If this snow materializes watch for fresh windslabs in the alpine. In many areas these slabs will be sitting on a smooth crust.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2