Bulletin d’avalanche

Purcells

Apr 12 – 13, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Daytime heating will cause heightened danger, especially on sun-exposed slopes.

Problèmes avalancheux

  • Loose Wet

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

    Wet loose avalanches are likely on sun-exposed slopes. Shaded slopes may also weaken with heating.

Confidence

Moderate

Avalanche Summary

A few size 1 to 2 wind slab avalanches have been reported in alpine terrain over the past week.

Looking forward, we expect wet loose avalanches as skies clear and the freezing level rises. Small wind slabs may still be possible along ridgetops.

Snowpack Summary

Warm sunny weather will melt and weaken surface snow everywhere except for north-facing slopes above roughly 2400 m. Surface melting will occur rapidly on sun-exposed slopes.

Weak layers deeper in the snowpack have shown signs of strengthening and are no longer a concern.

Weather Summary

Friday Night

Clear skies. 15 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1800 m.

Saturday

Sunny. 15 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2400 m.

Sunday

Sunny. 10 km/h west ridgetop wind. Treeline temperature +5 °C. Freezing level 2700 m.

Monday

Mix of sun and cloud. 30 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.
  • Minimize your exposure time below cornices.
  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Régions couvertes