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Avalanche Forecast

Archived

Apr 2nd, 2026–Apr 3rd, 2026

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, 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

Kootenay Boundary, Lizard-Flathead, Purcells, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, South Okanagan, Ymir, Akamina, Flathead, Lizard, Crawford, Moyie, St. Mary, Kokanee.

New snow may need time to bond.

Investigate on small, safe features before committing to big terrain.

Confidence

Moderate

  • We are uncertain about how quickly the snowpack will recover and gain strength.

Avalanche Summary

Storm slabs are suspected to have occurred on Thursday and are likely to decrease in sensitivity moving into Friday.

On Tuesday, a rider triggered a large (size 2) storm slab that carried them a long way on the crust from March. They were uninjured. This occurred east of New Denver.

Snowpack Summary

Around 10 to 20 cm of new snow fell on Thursday, which sits on a thin melt freeze crust.

A thick crust is buried 30 to 40 cm deep, which makes it unlikely to trigger any weak layers that persist in the upper snowpack.

The mid and lower snowpack is strong in most areas. Snowpack depth tapers rapidly at lower elevations.

Weather Summary

Thursday Night
Mostly cloudy. 1 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1600 m.

Friday
Mix of sun and clouds. 20 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1900 m.

Saturday
Mostly sunny. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 2100 m.

Sunday
Mostly sunny. 20 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2600 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.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Make observations and continually assess conditions as you travel.

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.