Bulletin d’avalanche

South Coast

Dec 31, 2022 – Jan 1, 2023Avalanche Canada
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Archivé · expiré 4 years ago

Danger d’avalanche

Mon
Tue
Alpin
4 · Fort
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

As the stormy weather comes to an end, expect human-triggered avalanches to remain likely as the new snow settles into a cohesive slab.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–2.5

    Storm slabs will build with the forecasted heavy snow. New snow may take some time to bond to the underlying crusts.

  • Loose Wet

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

    The snowpack at lower elevations remains slurry and saturated. As the snowpack approaches its melting point it will result in a loss of cohesion.

Confidence

Moderate

Avalanche Summary

Storm snow is reportedly not bonding well to the underlying crust, causing loose avalanches in steep terrain where the new snow lacks cohesion.

Please continue to post your observations and photos to the Mountain Information Network.

Snowpack Summary

Up to 80 cm of storm snow has likely accumulated since Thursday at higher elevations. The new snow overlies a thin melt-freeze crust and a moist, saturated snowpack below.

Treeline snow depths are roughly 150 to 200 cm.

Weather Summary

Friday night

Cloudy and heavy snow, 20 to 40 cm. Moderate south winds. 0 C at treeline. Freezing levels 1000 m.

Saturday

Cloudy and snow, 5 to 10 cm. Moderate west winds. 0 C at treeline. Freezing levels 1000 m.

Sunday

Mostly cloudy, with no precipitation. Light west winds. 0 to -5 C at treeline. Freezing levels 1000 m.

Monday

Mostly sunny, with no precipitation. Moderate southerly winds. 0 C at treeline. Freezing levels 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Don't be too cavalier with decision making, storm slabs may remain sensitive to human triggering.
  • Closely monitor how the new snow is bonding to the old surface.
  • Expect slab conditions to change drastically as you move into wind exposed terrain.

Régions couvertes