Bulletin d’avalanche

Northwest Coastal

Dec 6 – 7, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sun
Mon
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

Dangerous avalanche conditions persist as new snow and wind form fresh, reactive storm slabs.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2.5

    New snow and wind will continue to form fresh storm slabs. They will be deepest and most reactive in wind-loaded terrain.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5

    A weak, rain-saturated upper snowpack may still produce natural and human-triggered loose wet avalanches.

Confidence

Moderate

Avalanche Summary

Our limited field data suggests a natural avalanche cycle occurred in the past few days as rain and warm temperatures infiltrated the region.

Please consider submitting your observations to the Mountain Information Network.

Snowpack Summary

New snow accumulates atop a moist upper snowpack from rain in the past few days. Strong winds will redistribute new snow and create heavily wind-affected surfaces.

The remainder of the snowpack is strong, with various hard layers and crusts.

Weather Summary

Thursday Night

Cloudy with 5 to 15 mm of precipitation. 40 to 60 km/h southwest ridge top wind. Freezing level drops to 1600 m. Treeline temperature 0 °C.

Friday

Cloudy with rain transitioning to snow, 10 to 30 cm of new snow. 40 to 60 km/h southwest ridgetop wind. Freezing level drops to 1000 m. Treeline temperature -1 °C.

Saturday

Cloudy with up to 10 cm of new snow. 20 to 40 km/h southwest ridge top wind. Treeline temperature -3 °C.

Sunday

A mix of sun and cloud with isolated flurries. 20 to 50 km/h northwest ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.

Régions couvertes