Boletín de aludes

Coquihalla

Feb 14 – 15, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Sun
Mon
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Avalanches are possible where surface snow is stiffer, especially in areas affected by wind or sun.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–1.5

    Strong wind has likely built slabs in areas that aren't typical. Reassess your normal riding areas for wind slab.

  • Persistent Slabs

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

    A widespread weak layer is buried 40 to 60 cm deep, with slabs forming above this layer in some wind- and sun-affected areas.

Confidence

Moderate

Avalanche Summary

A notable skier-triggered slab avalanche was reported at Zupjok on Monday (see photo below and full report here). It occurred on a wind-loaded slope and failed on the persistent weak layer. This weak snowpack structure likely exists in specific locations.

Snowpack Summary

15 cm of snow from the weekend has been redistributed by northeast wind in the alpine and at treeline.

A weak layer from late January, buried 40 to 60 cm deep, is a hard crust in many areas but consists of facets or surface hoar on sheltered upper-elevation slopes. This layer has become reactive in snowpack tests and was the failure layer in Monday’s human-triggered avalanche.

A crust from December is buried 80 to 120 cm deep, with facets around it in shallow snowpack areas. Otherwise, the lower snowpack is strong and bonded.

Weather Summary

Thursday Night

Partly cloudy with 1 cm of snow. 20 to 30 km/h east ridgetop wind. Treeline temperature -12 °C.

Friday

A mix of sun and cloud. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -9 °C.

Saturday

Mostly cloudy with up to 5 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Sunday

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

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Be careful as you transition into wind-affected terrain.
  • Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.

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