Bulletin d’avalanche

Sasquatch

Jan 7 – 8, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Watch for pockets of wind slab in lee features and around steep rolls.

Surface snow may become moist with warm temperatures.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Recent wind has varied in direction so watch for wind slabs on a variety of aspects.

  • Loose Wet

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

    If the sun is out and the wind is calm, the snow may become wet and become an avalanche problem.

Avalanche Summary

Several MINs from the Coquihalla area on Sunday reported wind-affected snow, shooting cracks, and several small skier-triggered wind slabs.

Confidence

High

Snowpack Summary

A surface crust may form Monday night after warm temperatures. This is likely on all aspects except northerly aspects in the alpine.

Recent snow has seen moderate redistribution in wind-exposed terrain. Good snow quality has been reported in wind-sheltered areas.

A substantial crust up to 30 cm thick sits 50 to 100 cm deep, well-bonded to surrounding snow. The mid and lower snowpack is generally well consolidated, with several well-bonded crusts scattered throughout.

Treeline snow depths range from roughly 150 to 220 cm around the Coquihalla and 100 to 150 cm around Manning Park.

Weather Summary

Monday Night

Mostly clear skies. 10 to 20 km/h northeast ridgetop wind. Treeline temperature 0 °C. Freezing level 3000 m.

Tuesday

Mostly cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2800 m.

Wednesday

A mix of sun and cloud with 1 cm of snow. 10 to 30 km/h southwest wind. Treeline temperature -1 °C. Freezing level 2000 m in the afternoon.

Thursday

A mix of sun and cloud. 10 to 30 km/h southwest wind. Treeline temperature 0 °C. Freezing level 3000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Régions couvertes