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Archived

Avalanche Forecast

Nov 28th, 2013–Nov 29th, 2013
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
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
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.

Ice climbing conditions are generally good. Ski conditions are less than ideal until we get more snow. There may be an increase in hazard this weekend with an incoming system. SH

Weather Forecast

Very light snow Friday with light to moderate westerly alpine winds.  Freezing levels to valley bottom.  Snow is still forecast for Sunday, but we'll see how much we really end up with.

Snowpack Summary

On lee features in the alpine the snowpack consists of wind slabs over a weak mid-pack with a very weak base of facets. The Oct 27 crust on N-NE aspects is breaking down, but is still a sliding layer near ground. On average at treeline there is 70 cm of snow, barely blanketing the rocks and stumps.

Avalanche Summary

No new avalanche activity over the last 24 hours.

Confidence

Due to the quality of field observations on Thursday

Avalanche Problems

Persistent Slabs

We have seen less activity over the last few days. Be cautious around areas that have wind slabs over facets or the Oct. crust, especially in steeper, shallow terrain.
Ski penetrations may be to ground in some areas due to weak and unconsolidated snowpack.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3