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Archived

Avalanche Forecast

Jan 24th, 2016–Jan 25th, 2016
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Banff Yoho Kootenay.

The natural cycle from the last two days is tapering off. However, remain vigilant in your terrain and route choices.

Weather Forecast

Expect light cloud cover and temps between -2 and -8 with no precip until Tues, at which time an increase in wind from the west with rising temperatures will become inputs that raise the danger rating.

Snowpack Summary

15-25cm of storm snow sit on top of the Jan 4th layer. Wind-slabs as thick as 60cm can be found in high elevation lee areas. Below the Jan 4th layer there is weak faceted snow in the upper snowpack and while the mid and lower pack are supportive in thick areas, thin areas are faceted out completely.

Avalanche Summary

One size 2 avalanche was observed on Observation Peak. the slide was approx 24 hours old. It was located in the lee of a cross-loaded alpine feature that was easily visible from the highway.

Confidence

Track of incoming weather systems is uncertain on Wednesday

Avalanche Problems

Wind Slabs

Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident.
Avoid lee and cross-loaded terrain near ridge crests.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Loose Dry

The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run powerfully in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.
On steep slopes, pull over periodically or cut into a new line to manage sluffing.Good group management is essential to manage current conditions safely.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2