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Avalanche Forecast

Archived

Feb 8th, 2024–Feb 9th, 2024

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

Regions

Northwest Inland, Kispiox, Microwave-Sinclair, Ningunsaw, Ningunsaw, Ningunsaw, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Confidence

High

Avalanche Summary

A large (size 2.5) wind slab avalanche occurred naturally on a north-facing slope at treeline on Tuesday near Kispiox.

A couple of cornice failures have also occurred, failing naturally in the alpine.

Snowpack Summary

The snow surface is heavily wind affected in terrain exposed to the wind. Wind-sheltered terrain consists of 10 to 30 cm of settled dry snow, which overlies a thick and hard melt-freeze crust below approximately 1700 m. The crust is at the snow surface at lower elevations.

The middle of the snowpack may contain old, weak faceted layers and hard crusts, which do not currently present a concern.

Weather Summary

Thursday Night

Partly cloudy. 10 to 15 km/h northwest ridgetop wind. Treeline temperature -10 °C.

Friday

Mostly cloudy. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Saturday

Cloudy with up to 5 cm of snow. 50 to 70 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday

Cloudy with 2 to 3 cm of snow. 40 to 60 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

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.