Bulletin d’avalanche

South Coast Inland

Feb 6 – 7, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

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

Points saillants

Recent north wind may have formed wind slabs on lee features in the alpine.

Watch for recently formed and reactive wind slabs as you transition into wind affected terrain.

Problèmes avalancheux

  • Wind Slabs

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

    Recent north wind may have formed wind slabs on lee features in the alpine.

Confidence

High

Avalanche Summary

A few small (size 1) skier triggered wind slab avalanches were reported in the alpine on Sunday.

Snowpack Summary

Recent north wind may have formed small wind slabs on lee features in the alpine.

Above 1800 m, 10 - 20 cm of recent snow sits on a supportive crust.

Below 1800 m, recent snow amounts taper quickly and the crust increases in thickness.

Where snow still exists below treeline, it is isothermal and travel is very challenging.

Weather Summary

Monday night

Partly cloudy, southwest wind 10 km/h, treeline temperature -7 C, freezing level valley bottom.

Tuesday

Sunny, southwest wind 20 km/h, treeline temperature -4 C, freezing level 1100 m.

Wednesday

Cloudy, southwest wind 10 km/h, treeline temperature -6 C, freezing level 900 m.

Thursday

Mix of sun and cloud, southwest wind 10 km/h, treeline temperature -7 C, freezing level 800m.

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.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

Régions couvertes