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Avalanche Forecast

Archived

Apr 9th, 2026–Apr 10th, 2026

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

Northwest Coastal, Northwest Inland, Boundary, Kitimat, Nass, Rupert, Seven Sisters, Shames, Stewart, Howson, Kispiox, Ningunsaw.

Sun can quickly change snow conditions. Avoid steep slopes if the snow is moist, and stay well clear of cornices, which may weaken and threaten slopes below.

Confidence

Moderate

  • We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

On Wednesday, a wet loose cycle up to size 2 was reported.

On Tuesday, a human remotely triggered a wind slab (size 1). This was on a southeast slope at treeline around 1600 m. It ran on a buried suncrust.

On Monday, a widespread natural avalanche cycle of storm slab and wind slabs were reported across the region. Sizes were generally size 2 to 2.5. Numerous wet loose avalanches were also reported up to size 2.

Snowpack Summary

Widespread wind effect exists across most aspects, with the exception of high north-facing terrain where dry, wintry snow can still be found. Isolated wind slabs may linger. On solar aspects, a firm crust is present at the surface and may soften with daytime warming.

Below this, there are several old surfaces depending on aspect and elevation. A sun crust on solar aspects, faceted snow and/or buried surface hoar in sheltered northerly aspects and firm wind-pressed snow.

Several persistent weak layers are buried up to 250 cm deep. While triggering these layers is becoming unlikely, they present a low-probability, high-consequence problem. A cornice fall (large load) may be enough to trigger this slab.

Weather Summary

Thursday Night
Partly cloudy. 2 to 5 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1600 m.

Friday
Mix of sun and clouds. 10 km/h west ridgetop wind. Treeline temperature 2 °C. Freezing level 1600 m.

Saturday
Mix of sun and cloud. 20 km/h east ridgetop wind. Treeline temperature 2 °C. Freezing level 1500 m.

Sunday
Sunny. 10 km/h south ridgetop wind. Treeline temperature 2 °C. Freezing level 1500 m.


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.
  • Be aware of the potential for large, destructive avalanches due to deeply buried weak layers.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

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.