Bulletin d’avalanche

Vancouver Island

Jan 17 – 19, 2019
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Archivé · expiré 8 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    Expect reactive wind loaded pockets in the alpine and treeline on NW through NE aspects with incoming snow Thursday and Friday. These avalanches have the potential to be large in size (size1-2).

Travel & Terrain Advice

Minimize travel above and below cornices. A solid melt freeze crust on all aspects and elevations could be a slipping and sliding hazard. Avoid large wind loaded features in the alpine during the incoming precipitation.

Avalanche Summary

No avalanches observed or reported over the previous forecast period.

Snowpack Summary

Skyrocketing temperatures and clear skies during the recent inversion period caused all surfaces to become moist and then subsequently re-freeze. This has created a solid, supportive crust on all aspects and elevations. Layers below this dominant crust are being bridged and would require a very large trigger to affect.

Snowpack Details

Surface: Strong supportive melt freeze crust. Upper: well settled. Mid: well settled. Lower: well settled.

Past Weather

Strong inversion recently with high temperatures in the alpine and treeline. Light winds and no precipitation.

Weather Forecast

WEDNESDAY: No precipitation and freezing levels around 1100 m. Winds moderate gusting to extreme from the east. THURSDAY: 10 - 30 cm accumulation, higher totals in the southern parts of the region. Freezing levels around 900 m. Winds strong from the east. FRIDAY: 35 - 60 cm accumulation above 1000 m. Higher totals in the south. Freezing levels around 1300 m. Winds strong and variable, predominantly SE.

Régions couvertes