Bulletin d’avalanche

South Coast

Jan 19, 2017Avalanche Canada
Voir sur la carte
Archivé · expiré 10 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Ouvrir la carte complète

Points saillants

Warm wet weather continues. Where it rains, watch out for loose wet snow (or wet slabs in the alpine); where it snows, watch out for storm slabs.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    If you do encounter areas with >20 cm new snow, rein in your terrain use as storm slabs may also trigger deeper, weaker layers.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2
    Heavy rain is causing the surface snow to become wet and cohesionless.

  • Wet Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    Watch for rain saturating old wind slabs at the highest elevations in the alpine, or fresh wet snow bonding poorly to the previous snow surface.

Confidence

Moderate - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

THURSDAY: A mix of snow and rain (20mm water equivalent). Winds light gusting to moderate from the southwest. Freezing level around 1300m and alpine temperatures to +2 Celsius.FRIDAY: Unsettled weather with occasional rain or snow (5mm water equivalent). Winds light - moderate from the east. Freezing level 1500m and alpine high temperatures to +4 Celsius.SATURDAY: Continued unsettled weather with occasional rain or snow (5mm water equivalent). Winds light - moderate from the east. Freezing level 1500m and alpine high temperatures to +4 Celsius. More details can be found on the Mountain Weather Forecast.

Avalanche Summary

Recent reports have been limited by the inclement weather, but include evidence of natural wet loose avalanche activity up to Size 1.5.

Snowpack Summary

Heavy rain is saturating the snowpack up to alpine elevations. Crusts on and just below the snow surface have kept the snowpack quite stable and will continue to do so once the temperatures drop below freezing again. Higher up in the alpine, old wind slabs from last week could remain reactive on steeper unsupported terrain, especially if loaded by new snow or saturated by rain. The mid and lower snowpack are well settled and stable.

Régions couvertes