Bulletin d’avalanche

Kootenay Boundary

Nov 29 – 30, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Travel with caution around steep wind-affected slopes.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

    Recent westerly winds may have formed wind slabs along ridgelines and in exposed terrain.

Confidence

Moderate

Avalanche Summary

No recent human-triggered avalanches have been reported, but a few size 1 to 2 slab avalanches were triggered by explosives earlier this week, mainly on south and southwest aspects. The storm snow should now be well-bonded, except in areas recently affected by wind loading.

Snowpack Summary

Last week's 40 to 70 cm of snow remains soft in sheltered areas but may have formed reactive slabs in wind-affected terrain, particularly near ridgelines.

The snowpack is generally strong, with small surface hoar 50 to 70 cm deep and melt-freeze crusts near the ground, though no recent avalanches have been reported on these layers.

Treeline snow depths are around 100 to 150 cm.

Weather Summary

Thursday Night

Cloudy. 15 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Friday

Cloudy. 15 km/h west ridgetop wind. Treeline temperature -7 °C.

Saturday

Mix of sun and cloud with 0 to 1 cm of snow. 15 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Sunday

Mostly cloudy with 0 to 2 cm of snow. 25 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

Régions couvertes