Archived

Avalanche Forecast

Nov 26th, 2015–Nov 27th, 2015

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: Banff Yoho Kootenay.

Small windslabs are still a problem in the alpine. Intense, localized, solar heating may create overhead hazard.

Weather Forecast

Clear conditions and warmer temperatures are forecast for Friday and Saturday. In sheltered and sunny locations it can be expected to get above freezing for a short period. Localized temperature inversions will also be common.

Snowpack Summary

Below treeline the snowpack has set up well and is slowly facetting, Above treeline and in open areas there are numerous windslabs of varying depth. Poorly bonded windslabs over facets typical of the Rockies can still be expected in thin areas and ridgetop areas.

Avalanche Summary

No new avalanches reported.

Confidence

Freezing levels are uncertain on Friday

Avalanche Problems

Wind Slabs

Small windslabs are possible in isolated locations, perhaps providing a surprise during otherwise good conditions. The main concern is for terrain traps (above cliffs, gullies) where small avalanches have bigger consequences.

Be careful with wind loaded pockets while approaching and climbing ice routes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2