Bulletin d’avalanche

Waterton Lakes

Mar 15 – 18, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

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

A widespread natural avalanche cycle is likely with unseasonably warm temperatures and high freezing levels. This is a good weekend to avoid avalanche terrain.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1.5–3.5

    This layer is likely to become more reactive with rising freezing levels this weekend.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    1–2.5

    Small wet loose avalanches could trigger persistent weak layers and result in large avalanches.

Confidence

Moderate

Avalanche Summary

Numerous natural wet loose avalanches have been observed on solar aspects at all elevations. One natural, size 2 persistent slab avalanche was observed on Thursday, likely triggered by solar input and increasing temperatures.

Snowpack Summary

Moist surface snow all elevations on solar aspects. The Feb 3rd crust/facet persistent weak layer is buried 60-120 cm deep. Below this, the snowpack consists of a mixture of settled snow and crust/facet layers to ground. Snowpack depths between 80 - 250 cm.

Weather Summary

Sat

Clear skies with light northeast winds. Alpine temperatures staying above 0°C with alpine high of +7°C. Freezing level remains around 2800 m.

Sun

Sunny with light northerly winds. Freezing level 3500 m with an alpine high of +7°C.

Mon

Sunny with light winds. Freezing level 3400 m with an alpine high of +6°C.

For more info: Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid exposure to overhead avalanche terrain as temperatures increase.
  • Persistent slabs have potential to pull back to lower angle terrain.

Régions couvertes