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Avalanche Forecast

Archived

Mar 16th, 2026–Mar 17th, 2026

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

Regions

Crowsnest North, Crowsnest South.

Reactive wind slabs may be forming in more sheltered terrain features from strong wind.

Keep your guard up at all elevations, and avoid wind-loaded features.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

On Sunday, during the heat of the day several small wet loose avalanches were human triggered.

Snowpack Summary

Strong to extreme winds continue to heavily wind affect the surface. Wind slabs may be found deep into the terrain and in sheltered terrain.

The wind affected snow sits on a 3 to 10 cm thick crust on all aspects. The thickness of the crust depends on elevation.

A persistent weak layer of surface hoar and/or crust may be found around 70 to 100 cm down. Human triggered avalanches are unlikely on this layer in areas where a supportive crust exists below the recent snow.

In shallow snowpack areas, depth hoar (large facets) can be found near the bottom of the snowpack.

Weather Summary

Monday Night
Cloudy. 100 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 2900 m.

Tuesday
Cloudy. 80 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 2000 m.

Wednesday
Mostly cloudy. 2 to 4 mm of rain at treeline. 70 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2300 m.

Thursday
Mostly cloudy. 1 to 3 mm of rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Recent strong wind means wind slabs may be found farther downslope than expected.
  • Watch for areas of hard wind slab on alpine features.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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.