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Avalanche Forecast

Archived

Apr 5th, 2024–Apr 8th, 2024

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

Regions

Waterton Lakes, Waterton.

Moderate ridgetop winds are forecast over the next few days from varying directions. Watch for wind transport and slab formation near ridge crests.

Confidence

High

Avalanche Summary

No new avalanches observed in the past few days, however visibility has been limited with low cloud.

Snowpack Summary

15 - 30 cm of new snow overlies melt freeze crust at all aspects and elevations. The Feb 3rd crust/facet weak layer is buried 60-120 cm deep. Below this, the snowpack consists of a mixture of settled snow and crust/facet layers to ground. Snowpack depths between 80 - 250 cm.

Weather Summary

Sat

10-15 cm snow overnight and flurries through the day. Wind 15-30 km/hr from the NW and freezing level rising to 1700 m.

Sun

Cloudy skies, wind switching to westerly, 25 - 30 km/hr. Freezing level rising to 1900 m.

Mon

Cloudy with flurries through the day and moderate SW winds. Freezing level rising to 2100 m.

For more info: Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
  • Exercise caution on steep, unsupported slopes.

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 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.