Bulletin d’avalanche

South Rockies

Avalanche Canada
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Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
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

Avoid travelling underneath slopes in the sun.

Wind slabs are still possible in the alpine.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs may be rider-triggered in lee areas. Assess for wind loading before committing to big terrain features or riding above terrain traps.

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–2.5

    Cornices are more likely to fall as the temperature rises.

  • Loose Wet

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

    Wet loose avalanches are likely to occur during calm, sunny periods. Avoid being underneath slopes in the sun.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

We haven't received reports of recent avalanches.

Looking forward, wet loose avalanches will become likely as the sun comes out. Wind slabs may still be triggered in lee areas.

Please consider submitting a MIN to let us know what you're seeing out there.

Snowpack Summary

20 to 40 cm of new snow has fallen in the last three days. This snow either sits on a melt-freeze crust at upper elevations or wet snow lower down. In exposed areas the new snow has likely been redistributed by

A weak layer of facets above a hard crust is buried 50 to 70 cm deep. This layer hasn't produced avalanches since last week's warm weather.

Facets exist at the base of the snowpack in shallow areas.

The snowpack continues to melt at lower elevations.

Weather Summary

Thursday Night
Partly cloudy. Up to 5 cm of snow. 30 km/h northwest ridgetop wind. Treeline temperature -7 °C.

Friday
Mix of sun and clouds. 30 km/h northwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1800 m.

Saturday
Sunny. 30 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 2400 m.

Sunday
Mostly sunny. 40 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 3000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Investigate the bond of the recent snow before committing to your line.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Avoid sun-exposed slopes, especially if the snow surface is moist or wet.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.

Régions couvertes