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Archived

Avalanche Forecast

Nov 24th, 2013–Nov 25th, 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
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

Regions: Banff Yoho Kootenay.

Early season ski conditions exist. However, some ice climbs are in good shape. Ice climbers be mindful of the potential for increased temperatures starting Tuesday.

Weather Forecast

Generally, clear weather will persist throughout the week. By Tuesday expect to see freezing level climb above 3000m. This effect could produce an increase in avalanche activity, especially on solar aspects.

Snowpack Summary

Approximately 90 to 100cm of snowpack exists at treeline locations. Today, the forecasting team observed surface hoar up to 3mm in size. Remember this for later. The snowpack is generally comprised of facets and mixed forms that overly the Oct 27th crust which lies approx 15cm from the ground. Tests produced moderate result on the Oct crust.

Avalanche Summary

No avalanche activity was observed or reported today.

Confidence

Freezing levels are uncertain on Tuesday

Avalanche Problems

Persistent Slabs

Warm temps have settled storm snow from last week into a cohesive slab up to 70cm thick on top of the Oct crust (anywhere where windslabs were not already present). The likelihood of triggering will therefore remain the same.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3