Archived

Avalanche Forecast

Mar 30th, 2012–Mar 31st, 2012

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

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

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

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: Banff Yoho Kootenay.

The new snow will bond quickly, but watch for touchy wind slabs in exposed areas, especially around ridge crests and slopes with buried sun crusts. 10-20cm more is expected late Saturday afternoon into Sunday morning. SH

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Saturday

Avalanche Problems

Wind Slabs

10-30 cm over the last 24 hours has formed wind slabs in exposed areas. The Lake Louise area seems to have gotten the most snow, and widespread activity to sz. 2 was reported. Steep slopes with sun crust will have the poorest bond to this new snow.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

The Valentines surface hoar layer is down 70-150cm. It is harder to initiate, but as people start to venture into bigger terrain, the consequences of triggering will be large if you find the sweet spot. Thin areas will be the most susceptible.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3