Boletín de aludes

Lizard-Flathead

Dec 18 – 19, 2025Avalanche Canada
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Archivado · caducó 9 months ago

Peligro de aludes

Sat
Sun
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado

Lo esencial

Up to 70 cm of new snow and west winds have formed fresh storm slabs that will be most reactive in wind affected terrain.

Make conservative terrain choices and avoid overhead hazard.

Problemas de aludes

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3

    Up to 70 cm of new snow and strong west winds have formed fresh storm slabs that will be most reactive in wind affected terrain.

Confidence

Moderate

  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

On Wednesday, numerous explosive triggered storm slab avalanches up to size 2 were reported primarily at treeline and above on a variety of aspects.

Strong southwest winds on Thursday could trigger natural avalanches on lee aspects.

Snowpack Summary

50-70 cm of new snow and strong west winds have formed slabs overlying a thick crust.

Below the crust, the snowpack is moist to the ground.

Weather Summary

Wednesday Night
Partly cloudy. 50 km/h west ridgetop wind. Treeline temperature -8 °C. Freezing level valley bottom.

Thursday
Cloudy. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -7 °C. Freezing level 1200 m.

Friday
Mostly cloudy. 50 km/h west ridgetop wind. Treeline temperature -5 °C. Freezing level 1600 m, dropping to valley bottom.

Saturday
Mostly cloudy. 3 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -8 °C. Freezing level valley bottom.


More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make conservative terrain choices and avoid overhead hazard.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Use small, low consequence slopes to test the bond of the new snow.
  • Closely monitor how the new snow is bonding to the crust.

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