Lawinenlagebericht

Kananaskis

Mar 29 – 30, 2017Alberta Parks
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Archiviert · abgelaufen 10 years ago

Lawinengefahr

Fri
Sat
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
2 · Mässig
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Kernpunkte

The approaching storm has uncertain snowfall amounts and freezing levels. Keep an eye on localized conditions and be prepared to adjust your terrain choices if the hazard is higher than forecast.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–3
    Wind slabs are present in the Alpine and isolated areas at Treeline. Though found on all aspects watch for thicker slabs in lee and cross-loaded terrain.

  • Cornices

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–3
    Cornices are more fragile during sunny or warm periods. A cornice failure could trigger a significant slab on underlying slopes.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–4
    Due to the nature of the snowpack, forecasters still have very little confidence in larger terrain features, particularly in the Alpine. Full depth avalanches that could reach the end of run out zones are still possible.

Confidence

Moderate - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

Thursday will be mostly cloudy and snowy. Precipitation amounts vary widely with different forecasts calling for anywhere between 7 and 18cm. Winds should be light from the North with freezing levels near 2200m.

Avalanche Summary

No new avalanches observed or reported today.

Snowpack Summary

Another 5 to 10cm of new snow in the past 24hrs. In sheltered areas there is now an average of 30cm of low density snow overlying previous surfaces. On solar aspects there are now various buried crusts. Wind slabs are present in the Alpine and isolated areas at Treeline. Moist snow up to 2200m late in the day. The middle of the snowpack is generally well settled and dense, while the base of the snowpack consists of over 100cm of depth hoar and/or facets. Natural avalanche activity has tapered off, but the structure of the snowpack continues to cause concern to forecasters for "low probability, high consequence" avalanches.

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