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Avalanche Forecast

Archived

Dec 28th, 2025–Dec 29th, 2025

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

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

Strong winds and new snow are forming reactive wind slabs.

Areas sheltered from the wind will have better riding and lower avalanche hazard.

Confidence

Avalanche Summary

On Wednesday, a size 2 wind slab avalanche was observed at the Onion riding area. Otherwise, no other recent avalanches have been reported.

If you do observe an avalanche, please post a MIN report.

Snowpack Summary

15-20 cm of new snow overlies previous wind effect at treeline and alpine elevations. Areas sheltered from the wind are still holding soft snow.

A layer of surface hoar has been observed at depths of 70 to 110 cm throughout the northwest inland region. While no recent avalanches have involved this layer, some snowpack test results have been concerning.

Weather Summary

Sunday Night
Cloudy. 1 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Monday
Mostly cloudy. 1 mm of precipitation as snow or rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 0 °C.

Tuesday
Mostly cloudy. 5 to 10 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 1 °C.

Wednesday
Mix of sun and clouds. 1 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -1 °C.

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.
  • Surface hoar distribution is highly variable. Avoid generalizing your observations.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.