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Avalanche Forecast

Archived

Apr 6th, 2025–Apr 7th, 2025

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

Regions

South Rockies, Akamina, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West.

Head to high north facing slopes to find the best conditions.

Wet loose avalanches remain possible as warm temperatures continue.

Confidence

Moderate

Avalanche Summary

On Saturday, wet loose avalanches were observed to size 1. And on Friday, skiers remotely triggered a slab on a northeasterly lee ridge feature at treeline near Mt. Fisher.

Looking forward avalanche activity is expected to be limited to small, wet avalanches on steep slopes.

Snowpack Summary

The snow surface is either a thin crust or moist snow to 2500 m. High alpine north facing slopes may still hold dry snow above a thick crust from late March.

The snowpack is quickly disappearing below treeline.

Weather Summary

Sunday Night

Partly cloudy. 20 to 30 km/h southwest ridgetop wind. Freezing level remains above 2800 m.

Monday

Mostly cloudy with light rain possible. 30 to 50 km/h southwest ridgetop wind. Treeline temperature +4 °C. Freezing level above 2500 m.

Tuesday

Cloudy with up to 5 cm of wet snow above 2000 m. 30 to 50 km/h southwest ridgetop wind. Treeline temperature +2 °C.

Wednesday

Cloudy with flurries. 20 to 30 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level around 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

Problems

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.

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.