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Avalanche Forecast

Archived

Feb 25th, 2026–Feb 26th, 2026

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

Regions

Northwest Inland, Nass, Seven Sisters, Howson, Kispiox, Ningunsaw.

Stick to conservative, low-angle slopes with no overhead hazard.

Human and naturally triggered avalanches are likely and could occur at all elevations.

Confidence

Moderate

  • We are confident the likelihood of avalanches will increase with the forecast weather.

Avalanche Summary

We expect natural avalanche activity occurred on Wednesday but at the time of publishing we have yet to receive reports.

Several rider and remotely triggered avalanches occurred over the past few days. These avalanches occurred at treeline and in the alpine on northerly aspects. The remotely triggered avalanches failed on an early February weak layer.

Snowpack Summary

By Thursday morning, storm totals are expected to reach 25 to 50 cm, this 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.

Crust, facet and spotty surface hoar layers exist in the upper metre of the snowpack. These layers are most concerning at treeline and below, especially in inland areas where the snowpack is shallower.

A January crust and facet layer is buried 90 to 150 cm deep. Below, the remaining snowpack is generally well settled and bonded.

Weather Summary

Wednesday Night
Cloudy. 5 to 15 cm of snow. 70 km/h southwest ridgetop wind. Treeline temperature -6 °C.
Thursday
Cloudy. 2 to 10 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -10 °C.
Friday
Mostly cloudy. 3 to 10 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -11 °C.

Saturday
Mostly cloudy. 1 to 5 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
  • Stay off recently wind loaded slopes until they have had a chance to stabilize.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Remote triggering is a concern; avoid terrain where triggering overhead slopes is possible.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.