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Avalanche Forecast

Archived

Jan 8th, 2026–Jan 9th, 2026

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

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Choose low consequence terrain.

The combination of 40 cm of storm snow, strong wind, and a persistent weak layer means rider triggered avalanches are likely.

Confidence

Moderate

  • Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.
  • We are confident about the possible sizes of avalanches, should one release; what is less certain is the likelihood of triggering.

Avalanche Summary

Explosive control in the inland side of the region produced avalanches up to size 3. These avalanches released on a variety of layers including the facets in the lower snowpack. These avalanches entrained significant mass lower in the path.

No recent rider triggered avalanches have been reported.

Snowpack Summary

An additional 15 cm of storm snow is expected by Friday afternoon. Alpine terrain is heavily wind-affected. South facing slopes are scoured and north through east slopes have significant amounts of wind deposited snow.

At treeline a small surface hoar layer can be found down 30 to 50 cm.

The lower snowpack is made up of 60 to 100 cm of weak facets with depth hoar in shallow locations.

Snowpack depths vary widely due to wind, but average around 160 to 220 cm in the alpine across the region.

Weather Summary

Thursday Night
Mostly cloudy. 2 to 3 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -13 °C.

Friday
Mostly cloudy. 10 to 15 cm of snow. 30 to 50 km/h south ridgetop wind. Treeline temperature -11 °C.

Saturday
Mostly cloudy. 5 to 20 cm of snow. 40 to 60 km/h south ridgetop wind. Treeline temperature -5 °C.

Sunday
Mix of sun and clouds. 1 to 4 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -6 °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.
  • It's a good day to make conservative terrain choices.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

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.