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Archived

Avalanche Forecast

Jan 1st, 2013–Jan 2nd, 2013
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
Alpine
1: Low
The avalanche danger rating in the alpine will be low
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: South Coast.

Confidence

Good

Weather Forecast

Wednesday: Dry with sunny spells. An inversion is likely with alpine temperatures a couple of degrees above zero. Ridgetop winds gusting to 40 km/h from the SW. Thursday: Dry, with sunshine in the morning. The inversion will continue into Thursday. Ridgetop winds remaining around 40km/h. Friday: up to 5 cm snow. Freezing level lowering to around 1000m. Winds around 40km/h from the SW.

Avalanche Summary

A cornice fall released a size 2 slab avalanche on Monday.

Snowpack Summary

The steep South facing aspects are getting moist with warm temperatures and sun effect weakening the surface layer during the afternoons. As an overview, the snowpack is generally well-settled.? Near the base of the snowpack, the crust/facet layer appears to be inactive but still produces the sudden planar and collapse shears in isolated areas, especially in the Northern part of the region. Although unlikely, triggering an avalanche on a basal may be possible from thin snowpack areas or with a very heavy trigger.

Avalanche Problems

Wind Slabs

A shift in wind direction to the SW as set up new wind slabs on northerly and easterly aspects. With warm daytime temperatures, cornices may also be fragile.
Be cautious as you transition into wind affected terrain.>Give cornices a wide berth when travelling on or below ridges.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 4