Bulletin d’avalanche

Banff Yoho Kootenay

May 4 – 5, 2014Parks Canada
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Archivé · expiré 12 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
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Points saillants

Pay attention to how warm it is getting. If the sun comes out the hazard will increase rapidly on solar aspects.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Isolated wind slabs may persist in immediate lees of ridge tops.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    As day time temperatures rise the recent storm snow will start sluffing out of steep terrain.

Weather Forecast

Mixed sun and cloud for Monday with freezing levels near 2000 m. Cooling trend, unsettled weather and light flurries forecasted for Tuesday.

Snowpack Summary

40-50 cm of recent storm snow at treeline lies overtop of previous moist surfaces and in some areas a weak but supportive melt freeze crust. Storm snow is becoming moist at lower elevations and on solar aspects is sluffing out of steep terrain. There may be some fresh wind slabs lingering near lee ridge tops.

Avalanche Summary

Moist loose avalanches up to Class 2 sluffing out of steep and very steep terrain. No slabs observed.

Confidence

Freezing levels are uncertain

Régions couvertes