Boletín de aludes

Kitimat

Feb 5 – 6, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

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

It could be challenging to find riding that is both low risk and fun…

The persistent slab problem is concerning in sheltered terrain and exposed terrain is scoured or has wind slab present

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2

    Strong outflow (northeast) wind may continue to build wind slabs on south and west aspects.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2

    On terrain features that have been protected from the wind, you are likely to find surface hoar . This layer is down 50 cm and has been reactive to rider traffic.

Confidence

Moderate

Avalanche Summary

Over the past 3 days numerous rider triggered wind and persistent slab avalanches have been reported. These avalanches have generally been size 1’s at treeline. They have occurred on a variety of aspects.

The persistent slab avalanches were triggered on the surface hoar layer from mid January that is described in the snowpack summary.

Snowpack Summary

Strong to extreme northeast outflow wind continues to scour windward terrain at all elevations. In sheltered terrain 20 to 40 cm of snow overlies a surface hoar layer from late January.

Another layer of surface hoar was buried near the middle of January and can be found 50 cm deep.

100 to 200 cm deep in the snowpack are layers of crust, facets, and possibly surface hoar that were buried in December and have not been recently reactive in this forecast area.

Weather Summary

Tuesday Night

Clear skies. 40 to 70 km/h northeast ridgetop wind. Treeline temperature -14 °C.

Wednesday

Sunny. 20 to 40 km/h northeast ridgetop wind. Treeline temperature -8 °C.

Thursday

Mostly sunny in the morning and increasing cloud throughout the day. 10 to 20 km/h east ridgetop wind. Treeline temperature -12 °C.

Friday

Mix of sun and cloud with trace amounts of snow in the early morning. 10 to 20 km/h north ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
  • Be aware of the potential for large avalanches due to buried surface hoar.

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