Boletín de aludes

Glacier

Dec 7 – 8, 2025Avalanche Canada
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Archivado · caducó 10 months ago

Peligro de aludes

Tue
Wed
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Lo esencial

We are moving into Westerly flow, which means lots of snow for Rogers Pass!

If we receive more snow than is forecast, we could end up at HIGH hazard by the afternoon.

Assess conditions as the day progresses and be prepared to change your objective.

Problemas de aludes

  • Loose Dry

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

    The snow is piling up! In areas sheltered from the wind, loose snow has been easy to trigger with rider traffic and is moving fast.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1.5–3

    Storm totals could be up to 60cm by end of day Saturday, accompanied by moderate to strong SW winds. Expect reactive slabs to be forming, especially on lee and cross-loaded slopes.

Confidence

Moderate

Avalanche Summary

A natural avalanche cycle is starting from steep areas in the alpine. Visibility is poor at the time of writing, but we suspect they are storm slabs.

A limited artillery avalanche control mission on Thursday produced small loose snow avalanches in steep terrain.

Snowpack Summary

About 40 cm of snow (and counting) is covering a decomposing surface hoar layer in sheltered treeline areas, a thin rime crust on all aspects, and previous wind effect in open alpine terrain.

A rain crust is down 50-80cm in the snowpack, and exists up to approximately 2200m.

Weather Summary

An Aleutian low pressure system continues to deliver snow to the region, with an intense event coming Monday night.

Tonight Flurries, 6cm. Winds SW-20km/h. Alpine low -7°C, freezing level (FZL) 900m.

Sun Flurries, 10cm. High -4 °C. FZL 800m. Wind SW 15 gusting to 60 km/h

Mon: Snow, 45cm. High -1°C, FZL 1500m. Wind SW 40-55km/h.

Tues: Flurries, 12cm. Low -7°C, FZL 1600. Wind W-40 gusting to 85km/h.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

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