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Avalanche Forecast

Archived

Jan 12th, 2023–Jan 13th, 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. The wind has varied in direction so wind slabs are likely found on a variety of aspects.

Confidence

Moderate

Avalanche Summary

There are no recent reports of avalanche activity.

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

Thursday Night

Cloudy with scattered flurries bringing up to 3 cm of snow. Moderate southerly wind. Treeline high temperature around -7°C.

Friday

Cloudy with isolated flurries bringing 1-3cm. Light southerly wind. Treeline high temperature around -5°.

Saturday

Mainly cloudy. Light to moderate south wind. Treeline high temperature around -4°.

Sunday

Mainly cloudy with sunny periods. Light to moderate southeast wind. Treeline high temperature around -4°.

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.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

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.