Archived

Avalanche Forecast

Feb 16th, 2013–Feb 17th, 2013

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

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

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

Regions: Banff Yoho Kootenay.

Winds switched to SW this afternoon and some heavy precipitation was occurring west of the divide. Watch for new cornices and touchy wind slabs on steep lee slopes.

Weather Forecast

A weak storm will pass through on Saturday night followed by a short lived ridge building in for Sunday/Monday

Snowpack Summary

Winds have switched to southwesterly today creating a more usual loading pattern. Perhaps 10cm of new snow may fall overnight. New and old wind slabs persist on all open slopes at and above treeline. Cornices are building. Lower elevation slopes with less than 1m etre depth are weak and facetted.

Avalanche Summary

No new avalanches were observed today. Recent natural activity has been limited to steep lee terrain and small cornice falls.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Avalanche Problems

Cornices

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3

Wind Slabs

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2