Bulletin d’avalanche

Dogtooth

Avalanche Canada
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Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Périmé — ce bulletin a expiré 5 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Avoid exposure to overhead hazards when solar radiation is strong.

Cornice failures may trigger avalanches on the slopes below.

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5

    Cornice failures could trigger avalanches on the slopes below.

  • Loose Wet

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

    Strong solar radiation combined with high freezing levels will increase the likelihood of wet avalanches.

Confidence

Moderate

  • We are uncertain about how the snowpack will react to the forecast weather.

Avalanche Summary

On Wednesday, two skier triggered size 1 wind slabs were reported on northerly aspects at 2600 m.

Observations from this region are currently very limited. Please consider submitting a MIN to let us know what you're seeing out there.

Snowpack Summary

Poor overnight crust recovery and strong solar radiation mixed with high freezing levels are increasing the likelihood of cornice failures and wet avalanches.

A hard crust exists to mountain tops on south-facing terrain and up to around 2400 m on north-facing terrain. 10 to 15 cm of soft snow may still be found on shaded slopes at upper elevations.

A thick crust from mid-March is 20 to 60 cm deep, which extends up to about 2400 m. Near Invermere, weak sugary facets may be found above this crust.

In shallow snowpack areas, depth hoar (large facets) can be found near the bottom of the snowpack.

Weather Summary

Thursday Night
Clear skies. 20 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1800 m.

Friday
Sunny. 20 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2500 m.

Saturday
Mix of sun and cloud. 10 km/h southwest ridgetop wind. Treeline temperature 3 °C. Freezing level 2800 m.

Sunday
Mostly cloudy. 3 to 10 cm of snow above 2000 m (rain below). 20 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid exposure to overhead hazards when solar radiation is strong.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Régions couvertes