Bulletin d’avalanche

South Coast Inland

Mar 3, 2019Avalanche Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

Wind slabs at upper elevations are the primary concern. A cool and clear weather pattern is expected for the coming days.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Strong northeast winds have formed reactive wind slabs on south-southwesterly slopes and behind terrain features. Pockets of older wind slabs can still be found on all aspects.

Confidence

High - The weather pattern is stable

Weather Forecast

SUNDAY: Mainly sunny / light east wind / alpine temperature -10 CMONDAY: Mainly sunny / light to moderate east wind / alpine temperature -9 CTUESDAY: A mix of sun and cloud / light to moderate east wind / alpine temperature -7 C

Avalanche Summary

On Thursday and Friday, wind slabs up to size 1.5 were reported to be reactive to human triggers on all aspects at treeline and in the alpine. These wind slabs failed on older firm surfaces and facets approximately 20-50 cm down.

Snowpack Summary

10-20 cm of low density snow now sits over a variety of old surfaces including firm wind affected snow, sun crusts on steep solar aspects and surface hoar and faceted crystals in sheltered areas. Strong northeast wind from earlier this week formed pockets of wind slab in exposed terrain. In some instances wind slabs have been reported to be failing on a sugary faceted layer down 20-50 cm.The lower snowpack is generally well-settled.

Régions couvertes