Boletín de aludes

South Rockies

Mar 21 – 22, 2026Avalanche Canada
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Archivado · caducó 6 months ago

Peligro de aludes

Mon
Tue
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Avalanches are possible at upper elevations where dry new snow fell.

Travelling conditions are tricky where a surface crust exists.

Make observations and continually assess conditions.

Problemas de aludes

  • Wind Slabs

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

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    2–3

    Despite all the increased precipitation, persistent slabs may linger within the upper snowpack. Triggering may still be possible in areas without a thick and supportive surface crust.

Confidence

Moderate

  • We are uncertain about how quickly the snowpack will recover and gain strength.
  • We are uncertain due to a limited number of field observations.

Avalanche Summary

Continued evidence of a widespread wet cycle, with numerous natural avalanches (up to size 2.5-3), was reported throughout the region.

These included wet loose, wet slabs and persistent slabs. Many features have run full path (up to size 4) and reached the valley bottom.

If you are heading into the backcountry, please consider sharing conditions via the MIN.

Snowpack Summary

Up to 15 cm of new snow has fallen at upper elevations. This overlies a developing melt-freeze crust and/or wet surface snow.

Below this, 30 to 50 cm of wet snow sits above a crust (1 to 10 cm thick).

The widespread avalanche cycle has likely flushed most of the persistent slabs in the top 120 cm of the snowpack, but some may still linger in areas where avalanche paths have not yet released.

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

The lower snowpack is soaked at lower elevations.

As freezing levels drop, a widespread crust will form on all aspects at all elevations.

Weather Summary

Saturday Night
Mostly clear. 50 km/h west ridgetop wind. Treeline temperature -10 °C. Freezing level at valley bottom.

Sunday
Mostly sunny. 50 km/h west ridgetop wind. Treeline temperature -6 °C. Freezing level 1700 m.

Monday
Sunny. 40 km/h west ridgetop wind. Treeline temperature -4°C. Freezing level 2000 m.

Tuesday
Mostly cloudy. 5 to 10 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -3°C. Freezing level 2100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Closely monitor how the new snow is bonding to the crust.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

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