Bulletin d’avalanche

South Rockies

Feb 7 – 8, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Shifting winds can result in difficult to identify patterns of wind slab. Watch for signs of instability like shooting cracks as you transition to open terrain.

Problèmes avalancheux

  • Wind Slabs

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

    Recent new snow with strong northeast winds developed wind slabs in lee terrain features and continues to be possible to trigger by riders. New southwest winds may make these old wind slabs hard to identify.

Confidence

Moderate

Avalanche Summary

Several loose dry activity up to size 1.5 in neighboring regions out of steep terrain features.

Snowpack Summary

Recent snow has accumulated over a crust at treeline and alpine elevations. On the east side of the region, there is 20 to 40 cm, and on the west side 10 cm on this crust.

Below this crust, the shallow faceted snowpack is moist, with two crust layers, one in the midpack and another near the base of the snowpack. Avalanches on these layers are unlikely, but we continued to monitor their reactivity.

Weather Summary

Tuesday Night

Mainly cloudy. Alpine wind west 10 to 15 km/h. Treeline temperature -5 °C.

Wednesday

Cloudy then clearing with sunny breaks. Alpine wind northeast 5 to 15 km/h. Treeline temperature -4 °C.

Thursday

Mainly cloudy. Wind southwest 10 to 20 km/h. Treeline temperature -4 °C.

Friday

Mainly cloudy, 3 to 5 cm accumulation. Wind southwest 20 to 25 km/h. Treeline temperature -4 °C.

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.
  • Wind slabs may be poorly bonded to the underlying crust.

Régions couvertes