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Avalanche Forecast

Archived

Mar 24th, 2026–Mar 25th, 2026

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

Freshly formed storm slabs will be most reactive in wind affected terrain.

Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.

Confidence

Moderate

  • We are uncertain about forecast snowfall amounts.

Avalanche Summary

No new avalanches were reported on Monday.

Last week's rain and warm temperatures triggered a widespread natural slab avalanche cycle up to size 4.

If you are heading into the backcountry, please consider sharing conditions via the MIN.

Snowpack Summary

Forecast 15 to 25 cm of new snow and strong southwest winds may form storm slabs that will be most reactive in wind affected terrain. The new snow sits on a crust that is 5 to 20 cm thick in most locations. It may become thinner at upper elevations.

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

Weather Summary

Tuesday Night
Mostly cloudy. 0 to 5 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1800 m.

Wednesday
Mostly cloudy. 0 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1700 m.

Thursday
Sunny. 30 km/h west ridgetop wind. Treeline temperature -8 °C. Freezing level 1300

Friday
Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level 1700

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
  • Be especially cautious as you transition into wind-affected terrain.
  • Avoid shallow snowpack areas, rocky outcrops, and steep terrain where triggering is most likely.
  • Use small, low consequence slopes to test the bond of the new snow.

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.