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Avalanche Forecast

Archived

Jan 22nd, 2026–Jan 23rd, 2026

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

Regions

Kispiox, Ningunsaw.

Take care transitioning into lee aspects when hunting for softer snow.

Wind slabs have the potential to step down to deeper layers.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Jan 21

  • A skier triggered a persistent slab avalanche when transitioning into wind affected terrain. A firm wind slab stepped down 70 cm to the weak layer below.

January 20

  • No new avalanches reported but observations are limited. Consider posting to the MIN if you are out in the mountains!

January 19

  • Few small wind slabs were reported in steep north-facing alpine terrain that appeared to have been triggered by cornice fall.

Snowpack Summary

A crust exists on or near the surface in almost all terrain from the prolonged heat, rain and inversion.

The upper 80 to 150 cm of snow has been altered by previous strong southerly winds at upper elevations. The top 10 cm of the most recent crust is facetting in alpine and at treeline. Below 1000 m expect surface hoar on this crust in sheltered areas.

The mid and lower snowpack is well settled with no current layers of concern. Treeline snow depths throughout the region range from 150 cm to 250 cm.

Weather Summary

Thursday Night
Clear skies. 10 km/h east ridgetop wind. Treeline temperature -8 °C.

Friday
Sunny. 10 km/h northeast ridgetop wind. Treeline temperature -6 °C.

Saturday
Sunny. 20 km/h west ridgetop wind. Treeline temperature -5 °C.

Sunday
Mix of sun and clouds. 1 to 3 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Be careful as you transition into wind-affected terrain.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

Problems

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.

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.