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Archived

Avalanche Forecast

Jan 24th, 2014–Jan 25th, 2014
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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.

Although natural avalanches are unlikely right now, human triggered avalanches are still possible. Be cautious around shallow areas in big terrain, where the consequence of triggering an avalanche would be serious.

Weather Forecast

The drought continues with warm day time temperatures and light westerly winds. Colder air pushes in on Sunday which will reduce the impact of the sun on the snow.

Snowpack Summary

Shallow and weak snowpack sits on 10-20cm of basal facets. Midpack hard slabs provide bridging above treeline and into the alpine. Extensive scouring at upper elevations. Surface hoar growth observed in the last few days up to size 5mm below treeline and up to size 3mm above treeline.

Avalanche Summary

Field patrols observed three size 1.5 to size 2 slabs on solar aspects in the alpine that had released in the last 24 to 48 hours.

Confidence

Avalanche Problems

Deep Persistent Slabs

Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.
Be aware of thin areas that may propogate to deeper instabilites.Be aware of the potential for wide propagations.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3

Wind Slabs

Be aware of solar warming which could trigger a slide on this layer which in turn may step down and release the basal weakness.
Caution in lee and cross-loaded terrain near ridge crests.Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2