Bulletin d’avalanche

Lizard-Flathead

Apr 6 – 7, 2025Avalanche Canada
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Archivé · expiré last year

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Head to high north facing slopes to find the best conditions.

Wet loose avalanches remain possible with warm temperatures and light rain.

Problèmes avalancheux

  • Cornices

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

    Cornices are weak and may break further back on ridgelines than expected. These large loads can trigger buried weak layers on the slope below.

  • Loose Wet

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

    Wet loose avalanches are still possible as temperatures remain high and the snowpack has limited chance of refreezing overnight.

Confidence

Moderate

Avalanche Summary

On Saturday, avalanches were observed to size 1.

On Monday, activity is expected to be limited to small, wet avalanches on steep slopes.

Snowpack Summary

Light snow or rain will fall over either a thin crust or moist snow to 2500 m. High alpine north-facing slopes may still hold dry snow above a thick crust from late March.

The mid and lower snowpack are generally well settled.

Weather Summary

Sunday Night

Cloudy with 10 to 30 km/h southwest ridgetop wind. Freezing level remains above 2500 m.

Monday

Cloudy with 5 to 10 mm of wet snow or rain. 30 to 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level lowers to 2000 m over the day.

Tuesday

Up to 10 cm of wet snow or rain overnight.

Cloudy with 5 cm of snow above 1600 m. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Wednesday

Mostly cloudy with flurries. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Cornices often break further back than expected; give them a wide berth when traveling on ridgetops.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Régions couvertes