Boletín de aludes

Jasper

Jan 18 – 19, 2021
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Archivado · caducó 6 years ago

Peligro de aludes

Tue
Wed
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil

Lo esencial

The alpine has seen significant amounts of new snow followed by wind this past week. It will need some time to heal.

Sheltered locations treeline and below offer the safest and best skiing

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1.5–3

    Previous and continued moderate westerly winds in the alpine and exposed treeline have redistributed the snow well down into the terrain.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3

    Use caution around thin to thick areas. Keep an eye out for surface hoar in isolated sheltered locations below treeline. A Dec weak layer exists in West facing alpine features and could be reactive to human traffic, wind loading and solar input.

Weather Forecast

Monday: A mix of sun and cloud. Low -14 C, High -9 C. Mostly light ridge wind occasionally gusting to 35 km/h.

Tuesday: Cloudy with sunny periods and isolated flurries. Low -14 C, High -9 C. Ridge wind west: 20-40 km/h.

Wednesday: Cloudy with sunny periods and isolated flurries. Low -16 °C, High -11 °C. Wind west: 15 km/h gusting to 55 km/h.

Snowpack Summary

30cm of unconsolidated surface snow continues to settle. The alpine and wind prone treeline has seen moderate/strong winds promoting wind effect, wind slab formation and cornice growth. The midpack is supportive. Spotty surface hoar can be found down 30cm and 70cm in sheltered and shaded locations below treeline

Avalanche Summary

No new avalanches observed on field patrol Sunday.

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Confidence

Intensity of incoming weather systems is uncertain on Tuesday

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