Boletín de aludes

Purcells

Dec 4 – 5, 2025Avalanche Canada
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Archivado · caducó 10 months ago

Peligro de aludes

Sat
Sun
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil

Lo esencial

Strong winds at upper elevations may have created small isolated pockets of wind slab.

Assess steep slopes for dense or stiff snow before committing.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–1.5

    You may find pockets of wind slab at treeline and above. Watch for stiff, wind-loaded snow on ribs and gullies, especially where it sits over a weak, sugary layer near the base of the snowpack

Confidence

Low

Avalanche Summary

A small size 1 wind slab avalanche was reported from a north-facing slope at 2300 m. Check out this MIN REPORT for full details.

Dry Loose sluffing may be seen on steep terrain features.

Snowpack Summary

At treeline and above, 3–8 cm of new snow sits on top of faceted snow or surface hoar. The upper snowpack is mixed: wind-affected in open areas and softer in sheltered spots, sitting on a crust buried 20 to 30 cm deep from early November. Lower in the snowpack, there are several crusts, and in some areas a weak, sugary facets can be found near the ground.

Total snowpack depths are roughly 60 to 80 cm, tapering quickly at lower elevations.

In many areas, especially below treeline, there is not enough snow to smooth out surface roughness or reach the threshold for avalanches.

Weather Summary

Wednesday Night

Mostly cloudy. 2 to 3 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -6 °C.

Thursday

Mostly cloudy. 30 km/h west ridgetop wind. Treeline temperature -6 °C.

Friday

Mostly cloudy. 2 to 5 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Saturday

Mostly cloudy. 1 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Carefully evaluate steep lines for wind slabs.
  • Be cautious of buried obstacles, especially below treeline.

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