Bulletin d’avalanche

Coquihalla

Apr 5 – 6, 2025Avalanche Canada
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Archivé · expiré last year

Danger d’avalanche

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

Forecast rain to mountaintops may trigger wet loose avalanches on all aspects.

Problèmes avalancheux

  • Cornices

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

    Cornices loom over ridgetops and may be triggered naturally or by people traveling along ridgelines.

  • Loose Wet

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

    Forecast rain to mountaintops may trigger wet loose avalanches on all aspects.

Confidence

Moderate

Avalanche Summary

On Friday, numerous naturally triggered wet loose avalanches up to size 1.5 were reported.

NOTE: Observations are currently very limited in this region.

Snowpack Summary

Forecast 5 to 15 mm of rain to mountain tops on Sunday will create wet snow surfaces.

An old persistent weak layer may still be present 100 to 150 cm below the surface on high north-facing slopes.

Treeline elevations still hold over 200 cm of snow, but coverage is rapidly thinning at lower elevations.

Weather Summary

Saturday Night

Partly cloudy. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 2900 m.

Sunday

Mix of sun and cloud with 5 to 15 mm rain. Another 5 to 15 mm rain overnight. 20 to 30 km/h south ridgetop wind. Treeline temperature 3 °C. Freezing level 2700 m.

Monday

Cloudy with isolated flurries, 5 to 10 cm snow. 20 to 30 km/h south ridgetop wind. Treeline temperature 1 °C. Freezing level 1800 m.

Tuesday

Mix of sun and cloud. 10 to 20 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Régions couvertes