Boletín de aludes

Vancouver Island

Apr 22 – 23, 2022Avalanche Canada
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Archivado · caducó 4 years ago

Peligro de aludes

Sun
Mon
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil

Lo esencial

Lingering wind slabs may remain reactive on lee features in the alpine.

 Avoid exposure to steep sun exposed slopes. 

Problemas de aludes

  • Wind Slabs

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

    Lingering wind slabs may remain reactive on lee features in the alpine.

     Use ridges or ribs to avoid areas of wind loaded snow. 

  • Loose Wet

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

    Small wet loose avalanches may occur on all aspects as freezing levels rise to mountain tops.

    Avoid big, steep, alpine slopes that are getting cooked by the sun.

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

Friday night: Partly cloudy / Light south wind / Low of 0 / Freezing level 1600 m.

Saturday: Sunny / Light south wind / High of 8 / Freezing level 1700 m.

Sunday: Snow; 10-20 cm (rain below around 1100 m) / Strong south wind / High of 5 / Freezing level 1400 m.

Monday: Mostly cloudy / Moderate southwest wind / High of 4 / Freezing level 1200 m.

Avalanche Summary

Numerous small (size 1) naturally triggered wet loose avalanches were reported on all aspects and elevations on Thursday.

We currently have very limited avalanche observation data from this region.

Please consider posting your observations to the Mountain Information Network (MIN). Photos of current conditions and avalanches are the most helpful. 

Snowpack Summary

Lingering wind slabs may remain reactive on lee features in the alpine.

The recent snow is sitting on a variety of hard snow surfaces, including crusts and wind scoured snow. 

Below this, there are several crusts in the upper snowpack. In areas where there are weak facets sitting on top of the crusts, there is potential for large natural avalanches when freezing levels reach mountain tops for multiple days.

Avoid large slopes and avalanche paths during periods of intense warming.

Cornices are very large and more prone to failure during periods of intense warming.

Terrain and Travel

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Avoid exposure to steep sun exposed slopes.
  • Caution around slopes that are exposed to cornices overhead.

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