Boletín de aludes

South Rockies

Mar 12 – 13, 2026Avalanche Canada
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Archivado · caducó 7 months ago

Peligro de aludes

Sat
Sun
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable
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Lo esencial

Triggering large storm slabs will be most likely in wind affected terrain.

Persistent slabs remain possible to human trigger at treeline and above.

Problemas de aludes

  • Persistent Slabs

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

    Persistent slabs remain possible to human trigger at treeline and above, especially in areas without a supportive crust above the weak layer.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3

    25 to 40 cm of recent snow and strong southwest winds have formed storm slabs that will be most reactive in wind-affected terrain.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    1–1.5

    Expect natural wet loose avalanches to occur when the sun warms the dry snow for the first time.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

Several skier triggered size 1 storm slabs were reported on Wednesday.

Avalanche activity is expected to increase on Thursday with the new snow and wind.

Snowpack Summary

25 to 40 cm of recent snow and strong southwest winds have formed storm slabs that will be most reactive in wind-affected terrain.

Below the recent snow is a 1 to 10 cm thick crust. The thickness of the crust depends on elevation.

At upper elevations, where the crust is thinner or not present, it may still be possible to trigger persistent slabs on multiple buried weak layers of surface hoar and/or crusts in the top 120 cm of the snowpack.

In shallow snowpack areas, depth hoar (large facets) can be found near the bottom of the snowpack.

Weather Summary

Thursday Night
Mostly cloudy. 0 to 5 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -11 °C.

Friday
Mix of sun and clouds. 30 km/h west ridgetop wind. Treeline temperature -11 °C.

Saturday
Mix of sun and clouds. 0 to 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -11 °C.

Sunday
Sunny. 30 km/h west ridgetop wind. Treeline temperature -13 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make conservative terrain choices and avoid overhead hazard.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • Expect slab conditions to change drastically as you move into wind-exposed terrain.
  • Even brief periods of direct sun could produce natural avalanches.

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