Bulletin d’avalanche

Northwest Inland

Feb 9 – 10, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Sun
Mon
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Problèmes avalancheux

  • Wind Slabs

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

    Small pockets of wind slabs may linger in steep, wind-loaded terrain features in the alpine. Watch for cross-loaded features.

Confidence

High

Avalanche Summary

A large (size 2.5) wind slab avalanche occurred naturally on a north-facing slope at treeline on Tuesday near Kispiox.

A couple of cornice failures have also occurred, failing naturally in the alpine.

Snowpack Summary

The snow surface is heavily wind affected in terrain exposed to the wind. Wind-sheltered terrain consists of 10 to 30 cm of settled dry snow, which overlies a thick and hard melt-freeze crust below approximately 1700 m. The crust is at the snow surface at lower elevations.

The middle of the snowpack may contain old, weak faceted layers and hard crusts, which do not currently present a concern.

Weather Summary

Thursday Night

Partly cloudy. 10 to 15 km/h northwest ridgetop wind. Treeline temperature -10 °C.

Friday

Mostly cloudy. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Saturday

Cloudy with up to 5 cm of snow. 50 to 70 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Sunday

Cloudy with 2 to 3 cm of snow. 40 to 60 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Régions couvertes