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Avalanche Forecast

Archived

Dec 14th, 2025–Dec 15th, 2025

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

Regions

North Rockies, East Kakwa, Kakwa, McGregor, Pine Pass, Tumbler.

Another round of snow, wind, and warm temperatures!

Natural avalanches are expected - avoid avalanche terrain and overhead hazard. Weak layers may produce full path avalanches.

Confidence

Low

Avalanche Summary

We expect widespread natural avalanche activity to occur with the warm temperatures, wind and rain. Slabs may run within the recent storm snow, or on buried weak layers.

Snowpack Summary

Storm totals continue to rise! Another 15-35 cm of new snow adds to the 80 cm of rapidly settling snow from the last week.

Around 100 cm deep, a layer of surface hoar, facets and/or a crust exists. Uncertainty exists over the reactivity of this layer, small avalanches may step down to this layer. In thin snowpack areas, faceted grains or depth hoar may exist at the base of the snowpack.

Average snow depths at treeline range from 100 to 170 cm and decrease rapidly at lower elevations.

Weather Summary

Sunday Night
Mostly cloudy. 3 to 10 mm of precipitation as snow or rain at treeline. 60 km/h south ridgetop wind. Treeline temperature 0 °C. An above freezing layer (warm air) sits 1000-2000 m.

Monday
Cloudy. 10 to 20 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. An above freezing layer (warm air) sits 1000-2000 m.

Tuesday
Mostly cloudy. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Wednesday
Mix of sun and clouds. 3 to 10 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -13 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid exposure to overhead avalanche terrain; avalanches may run surprisingly far.
  • Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.