Bulletin d’avalanche

Sea To Sky

Avalanche Canada
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Danger d’avalanche

Sun
Mon
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
Périmé — ce bulletin a expiré 4 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

It’s a great time to head into the mountains.

Loose wet avalanches are most likely on steep, sun-affected slopes once the surface snow warms, becomes wet, and loses cohesion.

Problèmes avalancheux

  • Loose Wet

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

    Wet loose avalanches are possible in steep or extreme terrain when the snow surface is wet. Steep slopes with rocky outcrops are likely trigger points as they amplify warming.

Confidence

Moderate

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.
  • We are uncertain due to a limited number of field observations.

Avalanche Summary

Wet loose avalanches and cornice falls were last reported on Wednesday.

Snowpack Summary

A surface crust may exist early in the morning, but we expect it to break down quickly on sun exposed slopes, and at low elevations with sunshine and warming. The snow below is likely moist or wet. Dry snow may still exist on the highest north-facing slopes.

A thick crust, with possible facets above it, exists 10–50 cm deep at treeline and above. Previous winds may have scoured exposed features down to this crust.

The mid and lower snowpack is well settled and strong. At low elevations, the snowpack is disappearing quickly.

Weather Summary

Friday Night
Clear skies. 50 km/h north ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.

Saturday
Sunny. 40 km/h north ridgetop wind. Treeline temperature -1 °C. Freezing level 1700 m.

Sunday
Sunny. 30 km/h northeast ridgetop wind. Treeline temperature -1 °C. Freezing level 1600 m.

Monday
Sunny. 20 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Régions couvertes