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Archived

Avalanche Forecast

Dec 31st, 2012–Jan 1st, 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
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: South Columbia.

Confidence

Fair - Timing or intensity of solar radiation is uncertain on Wednesday

Weather Forecast

Overnight and Tuesday: Light Northwest winds increasing to moderate overnight, becoming strong Northerly during the day. Freezing level at valley bottom overnight and rising to 600 metres during the day. Alpine temperatures -9.0 overnight.Wednesday:Winds are expected to switch to the West and lower to moderate values. Mostly sunny skies with warm temperatures and some chance of an inversion in the alpine during the day that may bring temperatures up to about -3.0.Thursday:Alpine temperatures should cool down to about -6.0 under mostly clear skies and moderate Southwest winds.

Avalanche Summary

Recent avalanche activity in the region has been limited to loose snow avalanches running in steep terrain and isolated slab releases to size 2 from steep rocky terrain in the alpine. Glide cracks continue to open.

Snowpack Summary

New surface hoar continues to grow in areas that are sheltered from the wind. Recent surface hoar is buried beneath a thin layer of cold dry snow. Thin wind slabs continue to develop due to the availability of loose snow for transport. Continued winds are expected to stiffen these soft wind slabs. Deeper weak layers have not been reactive.

Avalanche Problems

Wind Slabs

Watch for newly formed and buried wind slabs in the lee of terrain features.
Use ridges or ribs to avoid pockets of wind loaded snow.>Be cautious as you transition into wind affected terrain.>

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 4