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Avalanche Forecast

Archived

Apr 4th, 2024–Apr 5th, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Kootenay Boundary, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, South Okanagan, Ymir, Crawford, Moyie, St. Mary, Kokanee, Retallack, Valhalla.

Even short windows of sun may be enough to initiate wet loose avalanches. Watch for surface snow becoming moist and avoid steep terrain, especially where terrain traps are present.

Confidence

High

Avalanche Summary

Numerous natural and rider triggered wet loose avalanches up to size 2 were reported on all aspects and elevations on Wednesday.

Snowpack Summary

7 to 12 cm of new snow has buried a surface crust on all aspects and elevations.

A persistent weak layer of facets sits on top of a second buried crust down 80 to 180 cm. This layer is unlikely to be human-triggered in areas where a thick crust above the weak layer is present.

Weather Summary

Thursday Night

Cloudy with isolated flurries, 5 to 8 cm. 20 to 25 km/h east ridgetop wind. Treeline temperature -3° C. Freezing level 1800 m.

Friday

Mostly cloudy with isolated flurries, 2 to 4 cm of snow. 15 to 20 km/h east ridgetop wind. Treeline temperature -3° C. Freezing level 1900 m.

Saturday

Cloudy. 10 to 20 km/h northwest ridgetop wind. Treeline temperature 0° C. Freezing level 2000 m.

Sunday

Partly cloudy, 10 to 15 km/h ridgetop wind. Treeline temperature 0° C. Freezing level 2000 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Loose avalanches may start small but they can grow and push you into dangerous terrain.
  • Watch for unstable snow on specific terrain features, especially when the snow is moist or wet.

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.