Boletín de aludes

Brazeau

Jan 13 – 14, 2023Avalanche Canada
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Archivado · caducó 4 years ago

Peligro de aludes

Sun
Mon
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
2 · Moderado
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Lo esencial

The east side of Jasper is forecasted to receive limited snow during the storm. Watch for rising freezing levels and increasing winds for Friday.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2

    A system moving in Thursday will have strong to extreme winds building wind slabs in exposed terrain.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2.5

    A varied slab sits over the December 17th Facet-Surface Hoar layer. This problem is most significant in open tree line features and in the alpine where you can expect a stiffer, likely more reactive slab.

  • Deep Persistent Slabs

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

    The bottom of the snow pack is inherently weak with well developed Facets and Depth Hoar. Avalanches initiating in the upper snowpack are likely to step down to this layer and gain significant mass.

Confidence

Moderate

Avalanche Summary

A field team went up to Maligne today. No significant avalanche activity has been observed or reported.

If you're out in the hills, don't forget to post to the MIN. Every bit of information helps!

Snowpack Summary

Increasing winds are expected to start Thursday evening. The storm will bring warm temperatures and rising freezing levels to around 2000m. Heavily wind affected and scoured alpine and open tree line terrain. Large facets and depth hoar comprise most of the snowpack. The snowpack varies from 50-85cm in depth and is unsupportive.

Weather Summary

Friday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: High 0 °C.

Ridge wind southwest: 25 km/h gusting to 60 km/h.

Freezing level: 1900 metres.

Saturday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -5 °C, High -3 °C.

Ridge wind south: 15-30 km/h.

Freezing level: 1600 metres.

Detailed weather forecasts from Avalanche Canada: https://avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Make conservative terrain choices and avoid overhead hazard.
  • Watch for signs of slab formation throughout the day.

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