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Archived

Avalanche Forecast

Jan 23rd, 2013–Jan 24th, 2013
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
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.

Some light snow Thursday may freshen up some slopes W of the divide, but avoid areas of wind slab which may be buried by new snow. SH

Weather Forecast

5-10 cm possible by Thursday night with mod-strong NW winds and slightly cooling alpine temperatures.

Snowpack Summary

Recent strong winds have created widespread wind effect in the alpine. Windward slopes are scoured and hard and soft slabs that are possible to trigger exist elsewhere. In shallow snowpack areas the mid-pack has facetted out and become weaker. Below 2200 m surface hoar exists in some locations and produces moderate results with comp. tests.

Avalanche Summary

No new natural activity today. Hard windslabs to size 2 have been skier triggered within the last few days in the alpine.

Confidence

on Thursday

Avalanche Problems

Wind Slabs

Variable wind slabs are prevalent , and will be most likely triggered from shallow snowpack areas propagating into thicker snowpack areas on facets.
Be careful with wind loaded pockets while approaching and climbing ice routes.Avoid convexities or areas with a thin or variable snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2