Bulletin d’avalanche

Vancouver Island

Mar 18 – 19, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Wed
Thu
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

With freezing levels gradually decreasing natural avalanche activity will likely also decrease. Human-triggered avalanches remain possible.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1.5–3

    Down roughly 80-150 cm from the surface a weak layer of faceted snow and spotty surface hoar may persist atop a firm crust.

  • Loose Wet

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

    Expect wet loose avalanche activity to persist, especially late in the day due to warming temperatures and solar effect.

    These may step down to deeper layers resulting in larger-than-expected avalanches.

Confidence

Moderate

Avalanche Summary

Observations over the weekend were limited, however, we suspect recent widespread wet loose and wet slab avalanche activity.

Snowpack Summary

As sunny days and high freezing levels continue, more of the upper snowpack will get moist or wet. The snowpack remains generally unstable.

80 to 120 cm below the snow surface, a weak layer of faceted snow may exist sitting atop a crust on all but high north aspects.

The mid and lower snowpack is generally settled and strong.

Weather Summary

Monday Night

Sunny. 0 to 20 km/h southwest ridgetop wind. Treeline temperature 8 °C. Freezing level 3000 m.

Tuesday

Cloud building throughout the day. 10 to 30 km/h southwest ridgetop wind. Treeline temperature 6 °C. Freezing level 2500 m.

Wednesday

Mostly cloudy. 20 to 40 km/h south ridgetop wind. Treeline temperature 2 °C. Freezing level drops to 1300 m by the end of the day.

Thursday

Cloudy with 0 to 5 cm of snow at higher elevations. Freezing level 1500 m. 0 to 20 km/h south ridgetop wind. Treeline temperature 0 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Avoid sun exposed slopes, especially if snow surface is moist or wet.
  • Avoid exposure to overhead avalanche terrain, avalanches may run surprisingly far.
  • Good day to make conservative terrain choices.

Régions couvertes