Bulletin d’avalanche

Microwave-Sinclair

Jan 13 – 14, 2023Avalanche Canada
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Archivé · expiré 4 years ago

Danger d’avalanche

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

Points saillants

Wind slabs in exposed terrain are the main concern at the moment. The wind has varied in direction so wind slabs are likely found on a variety of aspects.

Problèmes avalancheux

  • Wind Slabs

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

    Winds switching from north to south have formed wind slabs on a variety of aspects.

Avalanche Summary

There are no recent reports of avalanche activity.

Confidence

Moderate

Snowpack Summary

Recent strong southerly wind formed wind slabs in lee terrain features near ridges. Terrain sheltered from the wind has about 10 cm of soft snow. This snow may sit above a layer of surface hoar crystals. A weak layer of facets that formed during the arctic outbreak in December is buried 30 to 60 cm deep. Observations suggest it is fairly widespread, but not reactive to triggering under the current conditions.

Weather Summary

Thursday Night

Cloudy with scattered flurries bringing up to 3 cm of snow. Moderate southerly wind. Treeline high temperature around -7°C.

Friday

Cloudy with isolated flurries bringing 1-3cm. Light southerly wind. Treeline high temperature around -5°.

Saturday

Mainly cloudy. Light to moderate south wind. Treeline high temperature around -4°.

Sunday

Mainly cloudy with sunny periods. Light to moderate southeast wind. Treeline high temperature around -4°.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

Régions couvertes