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Avalanche Forecast

Archived

Jan 10th, 2026–Jan 11th, 2026

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

Regions

North Rockies, East Kakwa, Tumbler.

Strong wind continues to reshape the snowpack and build fresh wind slab. If triggered, wind slabs have potential to step down to a deeper weak layer.

Confidence

Low

  • Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.
  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

No new avalanches have been reported but observations have been limited. If you head into the backcountry, consider sharing your observations with the Mountain Information Network.

Snowpack Summary

Strong westerly wind has blown 25 cm of recent snow into slabs in leeward alpine and treeline terrain.

A crust from mid December, surrounded by weak facets, is buried 50 to 170 cm deep, depending on aspect and wind loading. Just over a week ago, a large natural avalanche cycle ran on this layer.

In thin snowpack areas, faceted grains or depth hoar may exist at the base of the snowpack.

Weather Summary

Saturday Night
Partly cloudy. 70 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Sunday
Mix of sun and clouds. 80 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.

Monday
Mostly cloudy. 3 to 5 mm of precipitation as snow or rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1800 m.

Tuesday
Mix of sun and clouds. 60 km/h west ridgetop wind. Treeline temperature 2 °C. Freezing level 2000 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.
  • 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.