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Avalanche Forecast

Archived

Jan 11th, 2023–Jan 12th, 2023

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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Microwave-Sinclair, South Bulkley, South Bulkley, Telkwa.

Wind slabs in exposed terrain are the main concern at the moment.

Confidence

Moderate

Avalanche Summary

Recent avalanche observations are limited to a few small dry loose avalanches.

Snowpack Summary

Recent strong southerly wind formed wind slabs in lee terrain features near ridges. Terrain sheltered from the wind has about 10 cm of soft snow. This snow may sit above a layer of surface hoar crystals. A weak layer of facets that formed during the arctic outbreak in December is buried 30 to 60 cm deep. Observations suggest it is fairly widespread, but not reactive to triggering under the current conditions.

Weather Summary

Wednesday Night

Mostly cloudy with isolated flurries and trace accumulations of snow, Light to moderate south winds. Treeline high temperature around -7°C.

Thursday

Increasing cloud with scattered flurries bringing up to 3 cm of snow. Moderate to strong southerly winds. Treeline high temperature around -5°C.

Friday

Cloudy with flurries bringing 1-3cm. Moderate southerly winds. Treeline high temperature around -5°.

Saturday

Mainly cloudy with isolated flurries. Light south winds. Treeline high temperature around -5°.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Avoid areas where the snow feels stiff and/or slabby.

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.