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Avalanche Forecast

Archived

Mar 31st, 2026–Apr 1st, 2026

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, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

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

New surface instabilities cover a stable snowpack.

Watch for snow amounts, and wind loading.

Back off steep terrain if signs of instability are observed.

Confidence

Moderate

  • We are uncertain whether the wind will be enough to form new wind slabs.

Avalanche Summary

Several dry loose and wet loose avalanches were reported on Monday up to size 1.5 both natural and rider triggered.

Also on Monday, a few natural small size 1 wind slabs were reported.

Snowpack Summary

Scattered flurries add 5 cm to a recent 15 to 20 cm of new snow. South-facing aspects have developed two solar crusts near the surface; wind-affected surfaces are found elsewhere.

Below this, a crust of variable thickness can be found in most locations and is down 20 to 50 cm and has been the bed surface for most recent avalanche activity.

The mid and lower snowpack is well settled and strong in most areas.

Weather Summary

Tuesday Night
Mostly clear skies. 20 km/h south ridgetop wind. Treeline temperature -4 °C. Freezing level 1600 m.

Wednesday
Cloudy. 3 to 5 cm of snow. 20 km/h south ridgetop wind. Treeline temperature -4 °C.

Thursday
Mostly cloudy. 2 to 4 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1600 m.

Friday
Mostly sunny. 1 to 2 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1600 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.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.