Boletín de aludes

North Rockies

Apr 21 – 22, 2024Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Tue
Wed
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

Evaluate your line for pockets of wind slab, especially around ridgecrest and in extreme terrain.

Problemas de aludes

  • Wind Slabs

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

    Thin pockets of wind slab are possible where wind has deposited sufficient snow into lee terrain features at upper elevations. Wind slabs may be especially reactive where they sit over a crust.

Confidence

Moderate

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

A dusting of new snow sits over a widespread melt-freeze crust on all but high north-facing alpine terrain, where snow remains dry and wind affected.

Weather Summary

Sunday night

Cloudy with a trace of snow at upper elevations. 40 to 60 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1400 m.

Monday

Clouds clearing through the day. 20 to 40 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level rising to 1900m.

Tuesday

A mix of sun and cloud. 20 to 40 km/h southeast ridgetop wind. Treeline temperature 0 °C. Freezing level 2300m.

Wednesday

Flurries bringing up to 5 cm of snow at upper elevations. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1900m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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