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Avalanche Forecast

Archived

Mar 18th, 2026–Mar 19th, 2026

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

Regions

Crowsnest North, Crowsnest South.

High freezing levels, strong wind and rain are affecting the snowpack. Carefully manage your exposure to overhead hazards and make conservative terrain selection.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.
  • We are uncertain about forecast rain amounts.

Avalanche Summary

A natural avalanche cycle with numerous wet loose and wet slabs (up pto size 2) was reported in the neighboring region on Wednesday.

On Tuesday, near Castle Mountain, riders were able to trigger small wet avalanches up to size 1.

Looking ahead, natural avalanches are likely at all elevations due to continuous rain and elevated freezing levels.

Snowpack Summary

Rising freezing levels and moderate rain have transformed the surface into wet snow up to roughly 2200 m. Above this, wind-pressed snow and small wind slabs, formed by strong winds, may still exist.

A crust layer can be found down 30 to 50 cm on lee features and on the surface in windward terrain.

Below this, the mid and lower snowpack are generally well consolidated with early-season crusts deep in the snowpack.

The snowpack rapidly diminishes at lower elevations and is likely moist to the ground in shallower areas.

Weather Summary

Wednesday Night
Cloudy. 5 to 15 mm of rain at treeline. 80 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2300 m.

Thursday
Mostly cloudy. 5 to 15 mm of rain at treeline. 80 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2400 m.

Friday
Cloudy. 10 to 20 mm of rain at treeline. 80 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2600 m.

Saturday
Mostly cloudy. 2 to 5 mm of rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid areas with overhead hazard.
  • Cornice failures could trigger large and destructive avalanches.
  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Keep in mind that the high density of wet avalanches can make them destructive.

Problems

Wet Slabs

Wet Slab avalanches are the release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events. Wet Slabs can be very unpredictable and destructive.

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.