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Avalanche Forecast

Archived

Mar 29th, 2026–Apr 1st, 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.

Regions

Waterton Lakes, Waterton.

More snow, wind, and sun. Keep an eye out for new wind slab formation, beginning during Monday's storm. Dry loose avalanches could be a problem on Tuesday, as the storm snow sees solar radiation for the first time.

Confidence

Moderate

  • We are uncertain due to the timing, track, and intensity of the incoming weather system.

Avalanche Summary

Several wet loose avalanches up to size 1 have been observed from the most recent warming.

Snowpack Summary

The current storm snow falls on a widespread melt freeze crust. This crust is present at all aspects and elevations except polars in the high alpine (where there is a 10-30 cm thick wind slab on some slopes). Under the crust is moist snow that is slowly refreezing. The mid and lower snowpack is well settled.

Weather Summary

Monday

Up to 11 cm of snow. Alpine Low of -5 °C, High of -5 °C. W wind gusting to 45 km/h. Freezing level at valley bottom.

Tuesday

Sunny with cloudy periods. Alpine Low of -11 °C, High of -1 °C. SW Wind to 15 km/h. Freezing level at 2000 m.

Wednesday

Up to 5 cm of snow. Alpine Low of -4 °C, High of 1 °C. SW wind gusting to 30 km/h. Freezing level at 2200 m.

Current weather forecast: Mountain Weather Forecast

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

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 Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.