Bulletin d’avalanche

Waterton Lakes

Jan 5 – 8, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Sun
Mon
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
3 · Marqué
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Points saillants

There has been significant Wind Slab development with the recent extreme wind event. Expect these new Wind Slabs to become more reactive with the rising freezing level on Saturday.

Problèmes avalancheux

  • Wind Slabs

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

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3

  • Storm Slabs

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

Weather Forecast

FRIDAY 10-15 cm of precipitation with strong SW winds and gusts up to 90km/h SATURDAY Freezing Levels rising to 1900m with winds easing to 40 km/h. Sunny.SUNDAY 5-10 cm precipitation with a 1200m freezing Level and Moderate SW winds.

Snowpack Summary

15-20cm of storm snow with Extreme SW winds has led to significant Wind Slab development in lee terrain. Expect these wind Slabs to become more reactive as the freezing level rises to 1900m on Saturday. The mid snowpack is generally well settled but there is potential for avalanches to step down to deeper weak layers.Surface Snow is moist to 1550m.

Avalanche Summary

Limited visibility during this storm cycle.

Confidence

Freezing levels are uncertain on Saturday

Régions couvertes