Boletín de aludes

Northwest Coastal

Jan 28 – 29, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Thu
Fri
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Deeply buried weak layers are slow to heal and require patience.

Choose low angle slopes free from overhead hazards.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2.5

    Wind slabs may sit on a layer of weak surface hoar crystals and take longer than normal to heal.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3.5

    The weak layer from early December is of greatest concern in areas with shallow, thin-to-thick snowpacks and on wind-loaded north or east-facing slopes.

Confidence

Moderate

Avalanche Summary

On Sunday, there were a few large to very large (size 2 to 3) persistent slab avalanches that failed during the warm weather on southeast and northeast aspects.

As well as numerous small wet loose avalanches from steep slopes facing the sun.

Snowpack Summary

20 to 40 cm of soft snow has been redistributed by southwest wind. Scouring exposed areas and loading lee features. In sheltered areas, this snow may sit on a layer of weak surface hoar crystals.

Around 100 to 200 cm deep are buried weak layers from December. Consisting of crusts, facets, and/or surface hoar. These layers continue to produce large avalanches.

The lower snowpack is strong, with no layers of concern.

Weather Summary

Monday Night

Cloudy. 30 to 50 km/h west ridgetop wind. Treeline temperature -6 °C.

Tuesday

Cloudy with 5 to 10 cm of snow. 10 to 20 km/h west ridgetop wind. Treeline temperature -6 °C.

Wednesday

Mostly cloudy with 20 to 30 cm of snow overnight and 10 cm during the day. 20 to 40 km/h west ridgetop wind. Treeline temperature -8 °C.

Thursday

Mostly cloudy with 5 cm of snow. 15 km/h south ridgetop wind. Treeline temperature -11 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep terrain that is rocky and thin.
  • Avoid areas where the snow feels stiff and/or slabby.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

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