Bulletin d’avalanche

Lizard-Flathead

Apr 3 – 4, 2019Avalanche Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Fri
Sat
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Minimize exposure to steep slopes as temperatures warm through the day, especially in areas with fresh snow.

Problèmes avalancheux

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5
    The likelihood of loose wet avalanches will increase through the day if temperatures rise, especially in areas with fresh snow.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

WEDNESDAY NIGHT - Cloudy with isolated flurries, trace to 10 cm accumulation / southwest wind, 35-45 km/h / alpine low temperature -1 C / freezing level 1500 m THURSDAY - Cloudy with sunny periods / southwest wind, 30-45 km/h / alpine high temperature 0 C / freezing level 1900 m FRIDAY - Wet flurries, up to 10 cm accumulation / southwest wind, 20 gusting to 50 km/h / alpine high temperature +2 C / freezing level 2100 mSATURDAY - Cloudy with isolated flurries, trace to 5 cm accumulation / southwest wind, 35 gusting to 65 km/h / alpine high temperature -1 C /  freezing level 1800 m

Avalanche Summary

There have been no recent avalanche observations in the forecast region.If the sun comes out for prolonged periods of time, the chances of loose avalanches will increase, especially in areas with fresh snow.

Snowpack Summary

The snowpack on sun exposed slopes in the alpine and all aspects at treeline and is moist or wet during the heat of the day, especially under direct sun. With spring conditions, the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day.Steep, north facing alpine terrain, still holds a cold, dry snowpack where well settled slab sits over weak facets (sugary snow). Human triggering of persistent slabs on this layer may still be possible, especially in rocky alpine terrain with a shallow or highly variable depth snowpack.

Régions couvertes