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Archived

Avalanche Forecast

Dec 23rd, 2017–Dec 24th, 2017
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
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: Northwest Coastal.

Sheltered terrain not only offers the best riding right now, but also keeps you away from the lingering wind slabs.

Confidence

Moderate - The weather pattern is stable

Weather Forecast

SUNDAY: Sunny with increasing cloud, strong outflow winds, treeline temperatures around -10 C.MONDAY: Clouds clearing throughout the day, moderate northwest winds, treeline temperatures around -12 C.TUESDAY: Sunny, moderate northwest winds, treeline temperatures around -12 C.

Avalanche Summary

No new avalanches have been reported. On Thursday, skiers triggered a few small slabs (size 1) on steep wind-loaded features.

Snowpack Summary

Strong outflow winds have dramatically affected the surface snow, scouring some slopes down to an old crust and forming hard deposits in many other areas. Sheltered areas may still have 20 to 50 cm of powder from previous storms, but winds have come from a variety of directions and affected much of the terrain. Wind slabs may rest on a variety of old surfaces including a thick melt-freeze crust (reported to be 3 to 15 cm thick) and in some sheltered locations soft feathery surface hoar crystals above the crust. The mid-pack is reported to be generally strong below this crust, with the possible exception of areas around Stewart and northern parts of the region where the late October crust can be found deep in the snowpack. This deep crust has been been associated with weak sugary snow and may still be a concern in shallow snowpack areas.

Avalanche Problems

Wind Slabs

Wind slabs exist on a range of aspects and elevations after a week of strong shifting winds.
Be alert to conditions that change with elevation, aspect and exposure to wind.Be cautious as you transition into wind affected terrain.Evaluate unsupported slopes critically.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2