Bulletin d’avalanche

Northwest Inland

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

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

A shift in weather is approaching. Avalanche danger will increase as new snow accumulates and is redistributed by wind.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5
    Up to 10 cm snow is forecasted to accumulate by the end of Thursday along with westerly winds gusting to 45 km/h. Expect thin wind slab development at ridgetop and lee terrain.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

WEDNESDAY NIGHT - Cloudy with clear periods / west wind, 20-40 km/h / alpine low temperature -5 C / freezing level dropping to valley bottom THURSDAY - Cloudy with isolated flurries, up to 10 cm accumulation / south wind, 20 gusting to 45 km/h / alpine high temperature -1 C / freezing level 1400 m FRIDAY - Flurries, 10 cm accumulation / southeast wind, 20-35 km/h / alpine high temperature +1 C / freezing level 1700 mSATURDAY - Flurries, 5-10 cm accumulation / south wind, 30 gusting to 90 km/h / alpine high temperature +1 C / freezing level 1600 m

Avalanche Summary

There have been no recent avalanche observations in the forecast region.

Snowpack Summary

Sun exposed slopes in the alpine and all aspects at treeline and below have become moist to wet during the heat of the day. In these areas, spring conditions are in effect; the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day. Dry snow may still be found on north-facing slopes in the alpine. At these locations, 30-50 cm of well settled snow overlies a layer of facets (sugary snow) that was buried around March 10th.

Régions couvertes