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Avalanche Forecast

Archived

Jan 11th, 2026–Jan 13th, 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, 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

Waterton Lakes, Waterton.

Last week's snowfall has been redistributed into windslabs near ridge crests and in isolated features. Use caution when entering wind loaded terrain.

The latter part of the forecast period is expected to come with significant warming, be aware that wet loose avalanches will be possible in steep lower elevation terrain.

Confidence

Moderate

  • Uncertainty is due to difficult to forecast freezing levels.

Avalanche Summary

Wind slab avalanches have been observed over the past week to size 2.5.

Snowpack Summary

Last week's 60 cm of snowfall has since been transported by strong winds and will become moist in lower elevations during the latter part of this forecast period.

The mid pack consists of settled snow, with the late December crust down 65-90 cm deep.

The lower snowpack is refrozen rain effected layers, which are still moist at ground in places.

Weather Summary

Sunday

Cloudy with sunny periods. Isolated flurries. High of -2 °C. SW wind gusting to 75 km/h. Freezing level at 1800 m.

Monday

Cloudy with sunny periods. Low of -2 °C, High of 2 °C. Wind gusting to 80 km/h. Freezing level at 2300 m.

Tuesday

Cloudy with sunny periods and isolated rain showers. Low of 2 °C, High of 4 °C. Wind gusting to 70 km/h. Freezing level at 3200 m.

Current weather forecast: Mountain Weather Forecast

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.

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.