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Archived

Avalanche Forecast

Jan 12th, 2015–Jan 13th, 2015
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
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
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: Glacier.

The potential for triggering an avalanche is still very much present on the buried surface hoar. Be cautious as you venture out into new terrain and consider the consequences of an avalanche on this layer.

Weather Forecast

High pressure ridge will maintain dry conditions through the week. Increasing cloud over our region is forecast today with continued light north west winds. Temperatures will be around -7 at 1800m. Freezing levels are forecast to rise by Tuesday.

Snowpack Summary

A sun crust up to 2cm thick is present on most solar aspects. Settling storm snow over the Dec 17 surface hoar down 60cm-100cm. Crust/facet layers are present just below the Dec 17 layer with varying thicknesses depending on aspect and elevation. The Nov 9 crust is a 30cm basal layer close to or on the ground.

Avalanche Summary

From two days ago, size 2.0 skier triggered avalanche in Loop Brook area, east aspect moraine feature, at 1700m, down ~60cm on the Dec 17 surface hoar layer, 4-6mm in size. 50m wide and 100m long.

Confidence

The weather pattern is stable

Avalanche Problems

Persistent Slabs

The Dec 17 instability remains our primary concern. This layer is still active and can be triggered by snow riders in areas where it has not previously avalanche. Likelihood of triggering has decreased but propagation and consequences have increased.
Be aware of thin areas that may propogate to deeper instabilites.Dig down to find and test weak layers before committing to a line.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3