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Avalanche Forecast

Archived

Apr 1st, 2026–Apr 4th, 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 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.

Another storm is on the way, and it may be an upslope one. On polar aspects, keep an eye out for storm slabs caused by an "Upside down" setup.

On solars look out for dry loose activity Thursday and wet loose activity Friday and Saturday.

Confidence

Moderate

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

Avalanche Summary

Numerous dry loose and several wet loose avalanches up to size 1 have been observed in the last 24 hours.

Snowpack Summary

The current storm snow is falling on top of 5-20 cm of well consolidated snow on solar aspects, and on polar aspects it is falling on 20-30 cm of lighter density snow. Under this, is a robust rain crust which is 20-50 cm thick. The lower snowpack is well settled and moist to ground tree line and below.

Weather Summary

Thurs

Up to 8 cm of snow. Alpine Low of -1 °C, High of -2 °C. Light wind to 20 km/h. Freezing level at 1700 m.

Fri

Cloudy with sunny periods and isolated flurries. Alpine Low of -5 °C, High of -2 °C. West wind gusting to 30 km/h. Freezing level at 1900 m.

Sat

Sunny with cloudy periods. Alpine Low of -4 °C, High of 1 °C. West wind gusting to 40 km/h. Freezing level at 2200 m.

Current weather forecast: Mountain Weather Forecast

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.

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.

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.

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.