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Avalanche Forecast

Archived

Feb 25th, 2026–Feb 26th, 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 possible, human triggered probable.
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.

Avoid wind loaded features.

Wind slabs are expected to increase in size and sensitivity throughout the day, human triggering is likely.

Confidence

Moderate

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

Avalanche Summary

Early reports from our field team indicate that natural wind slab avalanches likely occurred during the day on Wednesday.

On Monday, natural and human triggered size 1 wind slabs were reported on many aspects at treeline.

Reports in this region are limited, please post any photos or observations to the MIN if you head out.

Snowpack Summary

By Thursday afternoon up to 25 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 up to 40 cm.

·         A thick crust from late January down 50 to 70 cm

The remainder of the snowpack is well settled.

Weather Summary

Wednesday Night
Mostly cloudy. 5 to 10 cm of snow. 70 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Thursday
Mostly cloudy. 4 to 5 cm of snow. 60 km/h west ridgetop wind. Treeline temperature -8 °C.

Friday
Mix of sun and clouds. 5 to 10 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

Saturday
Mix of sun and clouds. 1 to 2 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -9 °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.