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Avalanche Forecast

Archived

Mar 8th, 2026–Mar 9th, 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, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Kispiox, Ningunsaw.

The wind has been at work in this region. Wind slabs and cornices are likely to be reactive.

Activity look for signs of wind slab like hollow and drum like sounds, and avoid wind loaded terrain.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

On Saturday, north of Kispiox a natural cornice release was reported that triggered a size 2.5 wind slab avalanche. In the same area skier triggered wind slab activity was reported.

Snowpack Summary

Up to 15 cm of recent storm snow has been redistributed by moderate to strong southwest wind. Below this, roughly 60 cm of settled snow overlies a weak layer of surface hoar.

Variable crust, facet, and/or surface hoar layers, buried throughout February, may exist within the upper 150 cm of the snowpack. Triggering these layers is less likely where a supportive crust is present. Upper treeline, and sheltered terrain in the alpine are suspect locations for triggering surface hoar.

Below these layers, the remaining snowpack is generally well settled and well bonded.

Weather Summary

Sunday Night
Mostly cloudy. 1 to 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Monday
Mostly cloudy. 2 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -10 °C.

Tuesday
Mostly cloudy. 2 to 5 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -10 °C.

Wednesday
Mostly cloudy. 1 to 5 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -10 °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.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Be especially cautious as you transition into wind-affected terrain.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.