Bulletin d’avalanche

Glacier

Feb 10 – 11, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

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

Points saillants

A small injury can become a big problem with these frigid temperatures.

Be prepared with extra layers and calories in your pack!

Problèmes avalancheux

  • Wind Slabs

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

    A fresh windslab formed yesterday in the alpine due to moderate southerly winds. Use caution in wind affected terrain and be aware that a surface slab could step down to the Jan 30th persistent weak layer.

  • Persistent Slabs

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

    20-40cms of snow overlays a buried weak layer. This weak layer is consists of surface hoar, facets and/ or a suncrust. It will be most reactive where there is a settled, cohesive slab over top.

Confidence

Moderate

Avalanche Summary

Natural avalanche activity has eased, however human triggering remains possible.

Neighboring operations are reporting rider & remote triggered avalanches on the Jan 30th layer.

Snowpack Summary

Moderate southerly winds yesterday refreshed the windslab in the alpine. Variable winds this past week had caused widespread wind effect, which is starting to facet out (become soft and sugary)

A weak layer of surface hoar, facets and/or suncrust (Jan 30th drought layer) is 30-50cm down from the snow surface.

The Jan 7th layer is down 50-80cm, and is comprised of surface hoar in sheltered areas and/or a thin crust on steep S aspects.

The basal snowpack is dense and strong.

Weather Summary

The arctic ridge is firmly planted. Mainly sunny skies and cold temperatures are forecast into the foreseeable future.

Tonight Clear with cloudy periods. Alpine low -22°C. Ridge wind NE 15-25km/hr.

Mon Sunny. Alpine high -18°C. Light N winds.

Tues Mix of sun and cloud. Alpine high -17°C. NW wind 10-20km/h.

Wed Mix of sun and cloud. Alpine high -17°C. Wind NW 10-20km/hr.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.

Régions couvertes