Bulletin d’avalanche

Kootenay Boundary

Dec 31, 2012 – Jan 1, 2013Avalanche Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Persistent slabs may be found in the Rossland Range. Check the Forecast Details tab for more information.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Wind slabs may be found behind ridges, ribs and gully walls.

Weather Forecast

Tuesday: Moderate N winds. Alpine temperature near -4. No precipitation. Wednesday: Light W winds. Alpine temperature near -2. No precipitation.Thursday: Light S winds. Alpine temperature near -1. No precipitation.

Avalanche Summary

Small skier-triggered wind slabs and loose moist avalanches have been reported.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Snowpack Summary

Wind slabs may be found behind terrain breaks such as ridges, ribs and gully walls. Slopes receiving direct sun may now swing between exhibiting moist snow and a frozen sun crust. A generally settled upper snowpack overlies the late November surface hoar, buried down 115-130 cm. This layer seems particularly reactive in the Rossland Range, where an avalanche a week ago, snowpack test results and a whumpf on Sunday demonstrate its potential reactivity, especially from thin snowpack areas. A deeply buried crust/facet layer near the base of the snowpack is considered dormant. Although unlikely, there is a lingering possibility of triggering a deep avalanche on this layer.

Régions couvertes