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Avalanche Forecast

Archived

Feb 26th, 2026–Feb 27th, 2026

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

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

Carefully assess for wind slab as you travel.
Human triggered wind slabs are likely and may propagate widely.

Confidence

Moderate

  • We are uncertain due to how buried persistent weak layers will react with the forecast weather.

Avalanche Summary

Our field team has observed wind slab avalanches up to size 2 on northeast aspects. These avalanches likely occurred on Tuesday or Wednesday.
Please post any photos or observations to the MIN if you head out.

Snowpack Summary

By Friday morning up to 30 cm of new snow may have accumulated. This new snow will be accompanied by strong to extreme southwest wind, forming deeper deposits on north and east aspects. Windward slopes may be scoured back to an old crust.

Two prominent layers exist in the snowpack:

·        A layer of facets from early February down around 40 cm.

·         A thick crust from late January down 50 to 100 cm

The remainder of the snowpack is well settled.

Weather Summary

Thursday Night
Mostly cloudy. 5 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -10 °C.

Friday
Mix of sun and clouds. 1 to 3 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

Saturday
Mix of sun and clouds. 1 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

Sunday
Mix of sun and clouds. 2 to 5 cm of snow. 70 km/h west ridgetop wind. Treeline temperature -3 °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.
  • Strong wind is building wind slabs farther downslope than usual.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Avalanches could start at higher elevations and travel into below treeline terrain.

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.