Bulletin d’avalanche

Akamina

Feb 3 – 4, 2023Avalanche Canada
Voir sur la carte
Archivé · expiré 4 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Assess for wind slabs in consequential terrain before committing.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5

    Wind slabs may linger in steep terrain features.

Snowpack Summary

Strong to extreme southwest wind continues to build isolated, hard wind slabs in the alpine near ridges. Wind slabs are building over wind-affected surfaces above 2100 m and a melt-freeze crust below.

The middle of the snowpack is consolidated. Weak faceted grains exist near the base of the snowpack.

The average snowpack depth is 120 cm and 200 cm in wind-loaded areas.

Confidence

High

Avalanche Summary

Small (size 1) isolated pockets of wind slab could be triggered by riders in lee terrain features. Wind slabs may linger directly lee of ridges at high elevations.

Please continue to share any observations or photos on the Mountain Information Network.

Weather Summary

Thursday Night

Clear skies with no precipitation, 50 to 60 km/h southwest wind, treeline temperature -5 °C.

Friday

Clear skies with no precipitation, 40 to 50 km/h southwest wind, treeline temperature -3 °C, freezing level 1500 m.

Saturday

Cloudy with light snowfall, accumulation 1 to 3 cm, 30 to 40 km/h southwest wind, treeline temperature -3 °C, freezing level 1600 m.

Sunday

Mostly cloudy with light snowfall, accumulation 1 to 3 cm, 20 km/h west wind, treeline temperature -2 °C, freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.

Régions couvertes