Archived

Avalanche Forecast

Nov 12th, 2011–Nov 13th, 2011

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

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

Regions: Little Yoho.

Skier accidental in the Lake Louise region today, see the bulletin for more details.

Avalanche Problems

Wind Slabs

Staff triggered 3 size 1 avalanches: one skier accidental and two by explosives in Paradise Bowl, Lake Louise (40 cm thick, 6-15 m wide, and ran up to 125 m). Watch for where the snow becomes slightly more cohesive from wind effect & snow depth.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2

Storm Slabs

After a brief reprieve, the WSW winds have returned moving the 15-20 cm of storm snow to lee features. Expect storm slabs to be reactive, especially if they sit on the hard slabs from last week's wind event.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2