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Avalanche Forecast

Archived

Apr 10th, 2025–Apr 11th, 2025

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.
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

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

If there is a thick crust, avalanches are unlikely.

Spring conditions can change rapidly. Read about the 4 likely scenarios here.

Confidence

Low

Avalanche Summary

No new avalanches have been reported since the weekend, however, data is limited.

On Friday, skiers remotely triggered a slab on a northeast lee ridge feature at treeline near Mt. Fisher.

Snowpack Summary

5 to 15 cm of snow sits on a crust up high or moist snow below 2000 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.

There are no other layers of concern.

Weather Summary

Thursday Night

Cloudy with 0 to 1 mm of rain. 40 to 60 km/h southwest ridgetop wind. Treeline temperature +3 °C. Freezing level 2400 m.

Friday

Sunny. 20 to 40 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 2300 m.

Saturday

A mix of sun and cloud with 5 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1900 m.

Sunday

Cloudy with 5 to 10 cm of snow overnight, then mostly sunny during the day. 10 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche danger will increase as the surface crust breaks down.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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.