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Archived

Avalanche Forecast

Dec 11th, 2017–Dec 12th, 2017
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
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
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.

The current weather pattern is expected to continue for most of the week.  Watch for wet snow in steep or extreme terrain where even a small release could become a big problem.

Confidence

High - The weather pattern is stable

Weather Forecast

TUESDAY:  Mix of sun and cloud. Ridge wind light from the southwest. Alpine Temperature +4. Freezing level 2000m.Wednesday: Mix of sun and cloud. Ridge wind light from the northeast. Alpine temperature +5. Freezing level 3200m.Thursday: Mix of sun and cloud. Ridge wind light from the northwest. Alpine temperature +5. Freezing level 3500m.

Avalanche Summary

No new avalanches have been observed since last Wednesday when small loose wet avalanches were noted up to size 1 in steep terrain, entraining the top 15 to 20 cm of snow.

Snowpack Summary

Warm weather has melted the snow surface to the top of the highest mountains. Surface crusts may form overnight but will melt quickly in the morning with continued warm temperatures and sunny skies. The upper snowpack is well-settled and bonding to a buried crust. Below treeline there are still open creeks, alder, and other early-season hazards. Expect snow depths around 200 cm at 1300 m and 30 cm at 800 m.

Avalanche Problems

Loose Wet

In steep unsupported terrain it may be possible to trigger loose, wet snow.  Once moving this type of release can build up mass quickly.
Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.Use extra caution on solar slopes or if the snow is moist or wet.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely

Expected Size: 1 - 2