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Avalanche Forecast

Dec 5th, 2013–Dec 6th, 2013
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: Sea To Sky.

Confidence

Fair - Due to the number of field observations

Weather Forecast

Arctic air continues to dominate the region as it pushes south. Freezing levels will remain at valley bottom. Temperatures  in the alpine are reaching  -12 to -15c during the day around  2000 M  with alpine temperatures considerably colder.  Winds continue from the north light to occasionally moderate.  No significant precipitation in the forecast, although there may be some cloud cover with light flurries in the next few days.

Avalanche Summary

Wind slab avalanche activity has recently been observed in the alpine up to size 2. Be suspect of all wind loaded pockets.

Snowpack Summary

Snow depths are highly variable throughout the region. Reports suggest there is 120 to 150cm of snow at tree line elevations. Terrain below tree line is reported to be mostly below threshold for avalanche activity.The 25-45cm of snow that fell during the last storm is bonding to old surfaces, though much of it has been redistributed by strong northerly winds. Wind slabs are a concern on south-facing terrain.There are crusts buried deeper in the snowpack with facets at higher elevations. Worth looking for it if you are digging a pit.

Avalanche Problems

Wind Slabs

Wind slabs at tree line and above are the major concern right now.
Avoid freshly wind loaded features.>Carefully evaluate big terrain features by digging and testing on adjacent, safe slopes.>If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2