Bulletin d’avalanche

Waterton Lakes

Feb 2 – 5, 2025Avalanche Canada
Voir sur la carte
Archivé · expiré 2 years ago

Danger d’avalanche

Tue
Wed
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Ouvrir la carte complète

Points saillants

Avalanche activity is likely for the next 48 hours through the storm, be alert for wind affected terrain where slabs are forming on a recently buried weak layer.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–1.5

    Ridgetop winds are forecast to continue through Sunday, likely forming new reactive wind slabs in lee features.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–1.5

    This problem is likely to exist in steep areas with another 20 cm of new snow forecasted by Monday.

Confidence

Moderate

Avalanche Summary

No new avalanches have been observed but visibility has been limited during the storm.

Snowpack Summary

5 - 10 cm of new snow since Friday, with up to another 20 cm expected by Monday. New snow and wind has formed windslabs in alpine and treeline lees. This overlies the January drought layer which includes facetted snow on northerly aspects or a melt freeze crust below treeline and on steep solar slopes into the alpine. Generally, the snowpack has become weak and facetted.

Snowpack depths at treeline range from 50 - 120 cm.

Weather Summary

Sun

5 - 10 cm of new snow, ridgetop winds 40 km/hr, easing to 25, from the southwest. Treeline high of -13°C, low of -22°C.

Mon

5 - 10 cm new snow overnight, scattered flurries through the day. Light ridgetop winds. Treeline high of -28°C, low of -29°C.

Tues

Mix of sun and cloud with minimal snowfall. Light ridgetop winds, treeline high of -24°C.

Check out the Mountain Weather Forecast for the most up to date information.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

Régions couvertes