Bollettino valanghe

Crowsnest North

Dec 3 – 4, 2025Avalanche Canada
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Archiviato · scaduto 10 months ago

Pericolo valanghe

Fri
Sat
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Strong winds at upper elevations may have created pockets of wind slab that a person could trigger.

Assess steep slopes for dense or stiff snow before committing.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–1.5

    Strong ridgetop wind may build fresh and reactive wind slabs, especially on terrain features at upper elevations, and behind ribs, gullies, and other terrain breaks.

Confidence

Low

Avalanche Summary

No new avalanches reported. If you are out and about in the mountains, please consider posting your observations to the MIN.

This MIN from the Highwood area in near by Kananaskis region, describes the similar conditions found in the Crowsnest region.

Snowpack Summary

Strong winds and blowing snow may have formed isolated wind slabs at treeline and above. The upper snowpack is variable, with wind-affected surface snow in open terrain and softer snow in sheltered areas. This overlies a crust that formed in early November. The lower snowpack consists of multiple crusts, and in some areas a layer of weak, sugary facets can be found near the ground.

Total snowpack depths are roughly 60 to 80 cm, tapering quickly at lower elevations.

In many areas, especially below treeline, there is not enough snow to smooth out surface roughness or reach the threshold needed for avalanches.

Weather Summary

Tuesday Night

Mostly clear skies. 20 km/h west ridgetop wind. Treeline temperature -7 °C.

Wednesday

Mostly sunny. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

Thursday

Sunny. 1 to 3 cm of snow at treeline. 60 km/h west ridgetop wind. Treeline temperature -7 °C.

Friday

Mostly sunny. 2 cm of snow at treeline. 60 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Carefully evaluate steep lines for wind slabs.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

Regioni coperte