Bulletin d’avalanche

North Rockies

Dec 20 – 21, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

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

Points saillants

Avoid areas that have received recent snow from wind loading.

The best and safest riding will be in areas sheltered from the wind.

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

Low

Avalanche Summary

On Wednesday there were reports of small dry loose avalanches. No slabs were reported.

A skier triggered a small wind slab on Tuesday, on a north aspect at treeline.

Data is very limited in this region. Please submit a report on the Mountain Information Network. Even a simple photo is a huge help to other backcountry users.

Snowpack Summary

In sheltered spots up to 30 cm of snow is sitting on a melt-freeze crust from early December. At upper elevations, wind has redistributed snow to lee features.

In some areas, freezing rain has been reported on top of the new snow creating a crust. As well as surface hoar that was buried yesterday.

There are no deeper layers of concern.

Data is very limited in this region.

Weather Summary

Thursday Night

Cloudy with 10 to 15 cm of snow. 25 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Friday

Mostly cloudy. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Saturday

A mix of sun and cloud with 2 cm in the morning. 25 to 40 km/h west ridgetop wind. Treeline temperature 0 °C.

Sunday

Sunny. 40 to 60 km/h south ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avoid slopes that sound hollow or drum-like.

Régions couvertes