Bulletin d’avalanche

Kootenay Boundary

Apr 4 – 5, 2019Avalanche Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

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

Conditions vary rapidly with elevation. Watch out for fresh wind slabs above the rain-snow line.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5
    Strong southwest wind has blown recent snow into lee terrain features, forming wind slabs. Use added caution above the rain-snow line, where these deposits may be reactive to human traffic.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

THURSDAY NIGHT: Mostly cloudy, light south wind, alpine temperature -1 C, freezing level 1900 m.FRIDAY: Cloudy with snowfall, accumulation 5 cm, moderate to strong southwest wind, alpine temperature -2 C, freezing level 1700 m.SATURDAY: Cloudy with snowfall, accumulation 10 to 20 cm, moderate south wind, alpine temperature -4 C, freezing level 1600 m.SUNDAY: Cloudy with snowfall, accumulation 5 to 10 cm, light to moderate southwest wind, alpine temperature -4 C, freezing level 1600 m.

Avalanche Summary

No new avalanches were observed on Wednesday.

Snowpack Summary

Above around 1800 m, 5 to 15 cm of recent snow overlies a melt-freeze crust on all aspects except for north, where the snow may overly weak faceted snow or surface hoar. The snow has been redistributed by strong southerly wind. Another 5 cm is expected to accumulate during Friday. Below 1800 m, the snowpack is wet. Snow is melting rapidly at lower elevations.

Régions couvertes