Boletín de aludes

Yukon

Feb 5 – 6, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Fri
Sat
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
Sin grado
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Lo esencial

Use extra caution in areas where the snowpack changes from thick to thin, especially near ridge crests.

This is where triggering avalanches is most likely

Problemas de aludes

  • Wind Slabs

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

    Wind slab may still be found on reverse loaded features due to ongoing outflow wind.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3.5

    The early December weak layer may still be triggered in shallow, thin-to-thick areas, or with large loads like a cornice or an avalanche that releases further up in the snowpack.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported yesterday. Our field team observed some old size 1 wind slab avalanches that likely occurred over the weekend. Check out their MIN for more info.

There have been no recent reports of persistent slab avalanches, but uncertainty remains regarding the early December layer mentioned in the snowpack summary.

Snowpack Summary

15 to 25 cm of old storm snow has been redistributed into hard wind slab by moderate northerly winds.

A weak layer of facets and a crust from early December is buried 50 to 100 cm deep. This layer exists on all aspects up to around 1700 m.

At the highway elevation the snow is 120 cm deep and in the alpine exceeds 200 cm.

Weather Summary

Tuesday Night

Mostly clear skies. 15 to 30 km/h northeast ridgetop wind. Treeline temperature -22 °C, potential for temperature inversion with warmer temperatures in the alpine.

Wednesday

Mix of sun and cloud. 15 to 30 km/h northeast ridgetop wind. Treeline temperature -16 °C.

Thursday

Mix of sun and cloud with trace amounts of snow. 20 to 40 km/h northeast ridgetop wind. Treeline temperature -16 °C.

Friday

Mix of sun and cloud. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -18 °C, potential for temperature inversion with warmer temperatures in the alpine.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

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