Bulletin d’avalanche

South Coast

Jan 27 – 28, 2018Avalanche Canada
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Archivé · expiré 9 years ago

Danger d’avalanche

Mon
Tue
Alpin
4 · Fort
Limite forestière
4 · Fort
Sous la limite
4 · Fort
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Points saillants

Natural avalanche cycle expected on Sunday. Travel in avalanche terrain not recommended.

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    1.5–2.5
    Large amounts of recent new snow and high winds are creating rapid cornice growth.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    1–2
    New snow, strong winds, and rising temperatures will create fresh storm slabs reactive human triggers

Confidence

High -

Weather Forecast

SUNDAY: 40-60 mm of rain (snow above roughly 1500m) / Strong to extreme southwesterly ridgetop winds / Freezing level rapidly rising to around 1800m.MONDAY: 60-80 mm of rain (snow above roughly 1500m) / Strong to extreme southwesterly ridgetop winds / Freezing level around 1800m.TUESDAY: 10-15 cm of new snow / Moderate southwesterly ridgetop winds / Freezing level dropping to around 800m.

Avalanche Summary

No new avalanches have been reported in this region on Friday. However, a natural avalanche cycle is expected to begin Saturday with the incoming storm.

Snowpack Summary

15-25cm of new snow is being redistributed by strong southwesterly ridgetop winds creating fresh storm slabs reactive to human triggers. Below the most recent storm snow there is a crust at treeline and below. The reactivity of the new storm slabs is likely to vary greatly depending on elevation/ temperature and orientation to wind. In general, I would expect the touchiest conditions to exist in exposed, higher elevation terrain.

Régions couvertes