Boletín de aludes

Sea To Sky

Nov 23 – 24, 2018Avalanche Canada
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Archivado · caducó 8 years ago

Peligro de aludes

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

For those that make it to the alpine: well done! Now watch out for wind slabs.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–1.5
    Pockets of wind-loaded snow likely exist in exposed areas behind ridges and peaks.

Confidence

Low - Due to the number of field observations

Weather Forecast

Friday night: Dry and clear.Saturday: Dry, with cloud building through the day. Light southwesterly winds. Freezing level around 900 m.Sunday: Mostly dry during the day, with snow or rain starting in the evening. Light southerly winds. Freezing level rising rapidly to around 1500 m in the afternoon.Monday: A significant storm is expected bringing up to 70 mm rain, strong southerly winds and freezing levels around 2200 m.

Avalanche Summary

Small storm and wind slab avalanches were triggered by explosives and skiers in alpine terrain on Thursday.

Snowpack Summary

The deepest snow is found at alpine elevations, with amounts around 60-80 cm. Around 30 cm of new snow lies above previous wind slabs that formed with strong southerly winds on Wednesday. Below lies a thin crust, now buried around 50 cm. A thicker lower crust, that may be associated with weak faceted crystals in some places lies close to the ground. This is most likely to cause problems in glaciated terrain or on high slopes where the summer snow did not melt out.

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