Boletín de aludes

South Coast Inland

Mar 3 – 4, 2026Avalanche Canada
Ver en el mapa
Archivado · caducó 7 months ago

Peligro de aludes

Thu
Fri
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
Abrir el mapa completo

Lo esencial

We are uncertain about the distribution and reactivity of buried weak layers in the top meter of the snowpack.

Dig down and look. Choose lower-consequence terrain in times of uncertainty.

Problemas de aludes

  • Wind Slabs

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

    Fresh, reactive wind slabs will form throughout the day on Tuesday.

  • Persistent Slabs

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

    Several persistent weak layers of surface hoar, facets or crusts may exist in the top meter of the snowpack. Wind slabs could step down to this layer, causing larger-than-expected avalanches.

Confidence

Moderate

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

Avalanche Summary

On Sunday, numerous natural avalanches up to size 3 were observed on solar aspects with strong sun. Several large (size 2) naturals were observed from wind-loaded alpine terrain.

In the past few days, numerous skier-triggered persistent slab avalanches have occurred up to size 2. Many of these avalanches happened on polar aspects at treeline and below.

A fatal, human-triggered (size 3.5) wind slab was triggered on Tuesday. MIN post here

Snowpack Summary

Up to 10 cm of new snow will accumulate by Tuesday afternoon, accompanied by strong southwest wind. This new snow overlies a melt-freeze crust on solar aspects and lower elevations, and wind-affected surfaces at higher elevations.

A couple of persistent weak layers buried in the last week may exist in the upper 30 to 60 cm of the snowpack. These consist of surface hoar, facets and crusts.

Buried around 60 to 100 cm is a prominent, persistent weak layer of facets and crust from early February.

The remaining snowpack appears to be strong and well-bonded.

Weather Summary

Monday Night

Mostly clear skies. 25 to 50 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1600 m.

Tuesday

Mostly cloudy. 2 to 10 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1600 m.

Wednesday

Mix of sun and clouds. 2 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Thursday

Mix of sun and clouds. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -5 °C.



More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Surface hoar distribution is highly variable. Avoid generalizing your observations.
  • Remote triggering is a concern; avoid terrain where triggering overhead slopes is possible.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Regiones cubiertas