Bulletin d’avalanche

Northwest Inland

Apr 4 – 5, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Continue to assess for signs of instability. Wind slabs may remain a lingering concern at higher elevations.

Problèmes avalancheux

  • Wind Slabs

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

    Reactive wind slabs may persist in steep, exposed terrain features.

Confidence

High

Snowpack Summary

Approximately 10 to 15 cm of new snow has buried a widespread crust. Strong winds earlier this week have scoured surfaces down to the crust in most windward-facing terrain while forming deeper deposits of snow in lee terrain.

Previously problematic layers deeper in the snowpack appear to have bonded and strengthened, however, there is a low likelihood that they could remain a risk in steep, north-facing, alpine terrain.

Weather Summary

Thursday Night

Mostly clear skies. 0 to 20 km/h variable ridgetop wind. Treeline temperature -5 °C. Freezing level at valley bottom.

Friday

Partly cloudy. 0 to 20 km/h south ridgetop wind. Treeline temperature -4 °C. Freezing level 1400 m.

Saturday

Mostly cloudy with 0 to 2 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1400 m.

Sunday

Mostly cloudy with 0 to 5 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Start with conservative lines and watch for clues of instability.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Brief periods of sun could quickly initiate natural avalanche activity.

Régions couvertes