Lawinenlagebericht

Kananaskis

Feb 14 – 15, 2013Alberta Parks
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Archiviert · abgelaufen 14 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Recent slab formation in the alpine and open areas at treeline will remain sensitive to skier-triggering on Friday. Incoming storms on the weekend will push the danger level up, with the most significant change expected on Sunday.

Lawinenprobleme

  • Loose Dry

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–4
    Recent snow and wind is causing sluffing from very steep terrain on lee aspects. It is possible that a sluff could cause a slab avalanche on the underlying slopes.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–5
    Storm slab development is on-going on lee and cross loaded features in alpine and treeline areas. With persistent westerly winds these slabs are widespread on E and S aspects and will be sensitive to human triggering.

Confidence

Fair - Intensity of incoming weather is uncertain

Weather Forecast

Friday will bring little precipitation, and continued strong westerlies. Saturday will see a wave of snowfall with a bigger storm arriving Sunday. Alpine temperatures will climb to near -5 degrees.

Avalanche Summary

Numerous sluffs up to size 1.5 on steep aspects on steep lee features in the alpine. One small slab triggered (likely by a goat) on a S asp at treeline. Slab did not propagate far and fracture depth was approximately 20 to 30cm.

Snowpack Summary

Small storms have added up to 20cm of new snow at treeline and above. Soft slab formation on-going at treeline and alpine elevations. Open areas at treeline have a stiffer slab than lower altitudes.

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