Bulletin d’avalanche

Coquihalla

Feb 15 – 16, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Continuously assess for slab properties as you move through terrain

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

Problèmes avalancheux

  • Wind Slabs

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

    Over the past few days the wind has come from a variety of directions. Small wind slab may exist on all aspects in exposed terrain.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    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

No new avalanches have been reported in the past 4 days.

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.

Snowpack Summary

A few cm of new snow is expected to accumulate throughout Saturday, covering a variety of surfaces. In sheltered terrain, it will land on facets and surface hoar, while on exposed slopes it will overlie wind-affected snow and a sun crust.

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.

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

Friday Night

Mostly cloudy with 0 to 2 cm of snow. 10 to 30 km/h westerly ridgetop wind. Treeline temperature -9 °C.

Saturday

Cloudy with 1 to 2 cm of snow. 10 to 20 km/h westerly ridgetop wind. Treeline temperature -7 °C.

Sunday

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

Monday

Clearing sky throughout the day. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -4 °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.

Régions couvertes