Bulletin d’avalanche

North Rockies

Dec 17 – 18, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Look for areas to ride where the surface snow is powdery.Avoid areas where the surface snow feels stiff and board-like, that is where wind slab avalanches could happen.

Problèmes avalancheux

  • Wind Slabs

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

    Watch for deeper and more reactive deposits of fresh snow around ridges and in lee features.

Confidence

Moderate

Avalanche Summary

Natural wind slab avalanches have been reported to size 2 as well as a size 1 human triggered avalanche. Avalanches were in the alpine and treeline in the powder king area.

Data is very limited in this region. Please submit your MIN (Mountain Information Network)

Snowpack Summary

15 to 30 cm fresh snow accumulated over the weekend. At upper elevations, wind has redistributed snow to lee features.

The recent snow overlies a hard melt-freeze crust. There are no deeper layers of concern.

Data is very limited in this region.

Weather Summary

Monday night

Mostly cloudy. 10 to 20 km/h west ridgetop winds. Treeline temperature -17 °C.

Tuesday

Cloudy with sunny breaks. 20 to 30 km/h southwest ridgetop winds. Treeline temperature -15 °C.

Wednesday

Mostly cloudy. Flurries, 5 cm. 30 to 50 km/h west ridgetop winds. Treeline temperature -8 °C.

Thursday

Mix of sun and cloud. 20 to 30 km/h west ridgetop winds. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

Régions couvertes