Bulletin d’avalanche

North Columbia

Avalanche Canada
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Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Périmé — ce bulletin a expiré 5 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

New snow and wind have created reactive wind slabs in lee features. Use caution as you transition into wind-affected terrain.

Problèmes avalancheux

  • Wind Slabs

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

    Expect reactive wind slabs in lee terrain.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

A few storm slabs and several wet loose avalanches were reported on Sunday, up to size 1.5.

Observations are limited; if you are going into the backcountry, please support the forecast by posting a MIN.

Snowpack Summary

Up to 20 cm of new snow falls on a widespread crust from previous warm temperatures and sun up to 2100 m.

A hard crust is buried 30 to 70 cm deep, but may remain exposed in wind-scoured alpine terrain. It extends up to at least 1500 m in the Rockies, and 2000 m in the Cariboos.

Below the crust, the snowpack is strong and well-bonded.

Weather Summary

Tuesday Night

Mostly cloudy. 20 km/h west ridgetop wind. Treeline temperature -5 °C.

Wednesday

Mostly cloudy. 1 to 2 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -5 °C.

Thursday

Mostly sunny. 20 km/h west ridgetop wind. Treeline temperature -3 °C.

Friday

Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Régions couvertes