Avalanche forecast

Kootenay Boundary

Feb 19 – 20, 2025Avalanche Canada
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Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

Watch for persistent slabs to become more reactive as the temperature gradually rises in the coming days.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    A layer of surface hoar buried 20 to 60 cm has been reactive where a cohesive slab sits above it.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2

    Dry loose avalanches can gather more snow as they move downhill and become large in steep terrain.

Confidence

Moderate

Avalanche Summary

On Monday numerous small (size 1 to 1.5) natural and human triggered dry loose avalanches were reported running in steep terrain. A size 1.5 natural persistent slab was reported on a north aspect in the alpine. A few large (size 2) explosives triggered wind slabs running on southerly aspects in the alpine were reported in the southern part of the region.

Weather Summary

Tuesday Night

Mostly clear. 10 to 25 km/h south ridgetop wind. Treeline temperature -10 °C.

Wednesday

Mostly cloudy with 1 to 3 cm of snow. 20 to 30 km/h south ridgetop wind. Treeline temperature -6 °C.

Thursday

Mostly cloudy with isolated flurries. 15 to 30 km/h west ridgetop wind. Treeline temperature -4 °C.

Friday

Mostly cloudy with 3 to 5 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

Regions covered