Bulletin d’avalanche

Kananaskis

Feb 15 – 16, 2017Alberta Parks
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Archivé · expiré 10 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

Temps are forecast to cool on Thursday which should begin to tighten up the snowpack. 

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    2–3
    Wind affected upper snowpack is everywhere in the alpine.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    2–4
    Many avalanches have stepped to this layer. Very large avalanches can be expected if this layer is involved. Large triggers(cornices) may wake this layer up.

Confidence

Moderate -

Weather Forecast

Weather for Thursday:Mainly cloudy with isolated flurries.Precipitation: Trace.Alpine temperature: High -4 °C.Ridge wind southwest: 40-55 km/h.Freezing level: 1800 metres.

Avalanche Summary

No new avalanches were observed on Wednesday but observations were limited.

Snowpack Summary

The warm temperatures are helping the upper snowpack to settle and producing moist snow on steeper solar aspects. At tree line 50-60cm of settled snow is overlying a facet layer that is about 70cm down producing hard test results. The bottom quarter of the snowpack is weak and consists of facets, depth hoar and the early season crusts. Expect continued wind transport for Wednesday especially on lee features and cross loaded gullies.

Régions couvertes