Boletín de aludes

Lizard-Flathead

Feb 3 – 4, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Wed
Thu
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado

Lo esencial

Although natural avalanche activity is tapering off new snow remains reactive to human triggering due to a buried weak layer.

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Problemas de aludes

  • Storm Slabs

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

    40 to 60 cm of new snow is bonding poorly to underlying layers. Avoid north and east lee slopes where wind and new snow have formed slabs over weak layers. Watch for signs of instability: whumphing, shooting cracks and recent avalanches.

Confidence

Moderate

Avalanche Summary

Saturday, several natural storm slab avalanches up to size 2.5 were reported. The new snow is poorly bonded to the old snow surface, and many size 1 human-triggered loose dry and storm slab avalanches were reported in steep terrain.

Snowpack Summary

Storm snow totals range from 40 to 60 cm, with deeper deposits in wind-loaded areas. The new snow is boding poorly to the old snow surfaces, which includes melt-freeze crusts on sun-exposed slopes, large surface hoar or facets in sheltered areas, and wind-affected snow in exposed terrain at ridgelines.

The lower snowpack is strong and bonded.

Weather Summary

Sunday Night

Mainly cloudy with light flurries, 1 to 4 cm of snow. 15 to 25 km/h east ridgetop wind. Treeline temperature -20 °C.

Monday

Mostly cloudy with a trace of new snow. 20 to 30 km/h east ridgetop wind. Treeline temperature -25 °C.

Tuesday

Mostly cloudy with a trace of new snow. 10 to 25 km/h east ridgetop wind. Treeline temperature -25 °C.

Wednesday

Clear. 10 to 25 km/h southwest ridgetop wind. Treeline temperature -20 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use small, low consequence slopes to test the bond of the new snow.
  • Be especially cautious as you transition into wind-affected terrain.
  • Keep your guard up as storm slabs may remain sensitive to human triggering.
  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.

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