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Avalanche Forecast

Archived

Jan 16th, 2019–Jan 17th, 2019

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Cariboos.

Watch for wind affected slopes in the alpine and at treeline. Snowfalls, increasing winds and rising freezing level starting Friday will likely change the avalanche conditions for the weekend.

Confidence

High -

Weather Forecast

WEDNESDAY NIGHT: Mostly clear skies with cloudy periods, light winds from southeast, alpine temperature -7 C, freezing level at valley bottom.THURSDAY: A mix of sun and clouds with isolated flurries, light to moderate southeast winds, alpine temperature -5 C, freezing level around 800 m.FRIDAY: Mainly cloudy with flurries, snow accumulation up to 5 cm, moderate to strong winds from south, alpine temperature -5 C, freezing level around 1200 m.SATURDAY: Periods of snow, accumulation ranging from 5 to 15 cm, strong to extreme southwest winds, alpine temperature -2 C to -7 C, freezing level around 1200 m.

Avalanche Summary

No new avalanches were observed on Monday and Tuesday.

Snowpack Summary

Recent warm air and sunny skies at higher elevations have left a crust on the snow surface on southerly aspects. The snow has remained dry on north aspects slopes. Wind slabs are still lingering in lee and cross-loaded features in alpine and exposed treeline terrain but they are old and hard to trigger.Below this, the snowpack is well-settled.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.