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Archived

Avalanche Forecast

Jan 1st, 2017–Jan 2nd, 2017
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
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

Regions: Jasper.

Prepare for cold temperatures all this week.

Weather Forecast

Temperatures dropping below -30s for lows.  A few flurries possible on Monday.  Dry and cold through the week.

Snowpack Summary

Southerly slopes in the alpine have been stripped by previous Strong SW winds with hard slab on lee features. At treeline, there is a faceted snowpack that is still just supportive but weakening in shallow areas. Cross-loaded slopes on westerly aspects starting to release at Treeline and above.

Avalanche Summary

2 slab avalanches observed in the Nigel Basin across from Parkers Ridge in cross-loaded gullies above treeline on SW aspect.  Size 2 and 2.5.

Confidence

The weather pattern is stable on Monday

Avalanche Problems

Wind Slabs

Cold temperatures and hard slab conditions make triggering less likely.  Triggering from shallow spots a possibility.
Caution in lee and cross-loaded terrain near ridge crests.Watch for areas of hard wind slab in steep alpine features.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Persistent Slabs

This layer will weaken with cold temperatures.
Be cautious in shallow snowpack areas where triggering is more likely.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3