Bulletin d’avalanche

Yukon

Feb 4 – 5, 2025Avalanche Canada
Voir sur la carte
Archivé · expiré 2 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
Sans niveau
Ouvrir la carte complète

Points saillants

If you venture out in the cold, even a small issue can quickly escalate into a major problem.

Avalanches are of greatest concern in areas with a transition from shallow to deep snow.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Wind slabs are present on non-typical areas, due to north outflow winds.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3.5

    The early December weak layer may still be triggered in shallow, thin-to-thick areas, or with large loads like a cornice or avalanche.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported in the past week.

There have been no recent reports of persistent slab avalanches, but uncertainty remains. Snowpack test results and whumpfing suggest it may still be triggerable in areas that are shallow and rocky.

Snowpack Summary

Between 15 to 25 cm of old storm snow has been transported via moderate northerly winds. Watch for reverse loaded slopes hiding pockets of hard wind slab.

A weak layer of facets and a crust from early December is buried 50 to 100 cm deep. This layer exists on all aspects up to around 1700 m.

At the highway elevation the snow is 120 cm deep and in the alpine exceeds 200 cm.

Weather Summary

Monday Night

Mostly clear. 50 to 70 km/h north ridgetop wind. Treeline temperature -15 °C.

Tuesday

Mostly clear. 40 to 50 km/h north ridgetop wind. Treeline temperature -10 °C.

Wednesday

Mostly clear. 15 to 25 km/h north ridgetop wind. Treeline temperature -10 °C.

Thursday

Mostly clear. 25 to 30 km/h north ridgetop wind. Treeline temperature -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded terrain features.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Régions couvertes