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Avalanche Forecast

Archived

Apr 12th, 2026–Apr 13th, 2026

Alpine
Natural avalanches unlikely.
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 possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
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, Retallack, Valhalla.

Assess conditions as you travel, and avoid exposure to large, overhanging cornices

Confidence

Moderate

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.
  • We are uncertain due to a limited number of field observations.

Avalanche Summary

No new avalanches have been reported since Friday.

Observations from this region are very limited. Please consider submitting a MIN to let us know what you're seeing out there.

Weather Summary

Sunday Night
Partly cloudy. 1 to 2 mm of rain. 10 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2400 m.

Monday
Mostly cloudy. 1 to 4 mm of precipitation as snow or rain at treeline. 20 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2200 m.

Tuesday
Mostly cloudy. 5 to 10 mm of precipitation as snow or rain at treeline. 40 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1900 m.

Wednesday
Mostly cloudy. 5 to 15 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -4 °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.
  • Make observations and continually assess conditions as you travel.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

Problems

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.