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Archived

Avalanche Forecast

Dec 23rd, 2012–Dec 24th, 2012
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
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: South Coast.

Confidence

Fair - Intensity of incoming weather is uncertain on Tuesday

Weather Forecast

Monday: Light SW winds. Alpine temperatures around -8. No precipitation.Tuesday: Light to moderate SE winds. Alpine temperature around -7. Light snow late in the day.Wednesday: Light SW winds. Alpine temperature around -8. Light snow.

Avalanche Summary

Small wind slabs and fast running loose dry avalanches were observed on Saturday.

Snowpack Summary

New wind slabs overlie a generally well–settled snowpack. Surface hoar layers in the upper/mid snowpack appear to have gained strength and are now less of a concern. Near the base of the snowpack, a crust/facet layer appears to be inactive. Although unlikely, triggering an avalanche on this layer may be possible from thin snowpack areas or with a very heavy trigger.

Avalanche Problems

Wind Slabs

Winds have shifted available snow into slabs behind ridges and ribs. These could be triggered by the weight of a person or snowmobile.
Stay off recent wind loaded areas until the slope has had a chance to stabilize.>Be alert for areas that have been reverse loaded by winds.>Use ridges or ribs to avoid pockets of wind loaded snow.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 4

Loose Dry

The volume of loose dry snow could knock you over or carry you into a terrain trap. Be cautious in any steep terrain.
On steep slopes, pull over periodically or cut into a new line to manage sluffing.>Be aware of party members below you that may be exposed to your sluffs.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3