Bulletin d’avalanche

South Coast Inland

Feb 20 – 21, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

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

Points saillants

New wind slabs are likely to form above a generally faceted and weak upper snowpack.

Problèmes avalancheux

  • Wind Slabs

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

    New snow combined with wind will form fresh wind slabs on top of the existing upper snowpack, which contains various potential weak layers.

Confidence

High

Avalanche Summary

Numerous small (up to size 1.5) dry loose avalanches have been reported recently throughout the region, both natural and skier-triggered.

Otherwise, no recent avalanche activity has been reported.

Snowpack Summary

Approximately 10 cm of new snow has accumulated atop various surfaces formed during recent cold, dry conditions. These include firm wind effect in exposed terrain, weak surface hoar or faceted grains in sheltered terrain, and sun crusts on sun-affected slopes.

20 to 50 cm of generally faceted snow overlies a potentially weak layer buried in late January. In many areas, this layer consists of a hard crust along with weak facets or surface hoar.

The mid and lower snowpack is strong and bonded.

Weather Summary

Wednesday Night

Cloudy with 0 to 5 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Thursday

Cloudy with 0 to 2 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Friday

Cloudy with 0 to 5 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Saturday

Mostly cloudy with 0 to 5 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature 0 °C.

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.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.

Régions couvertes