Lawinenlagebericht

Jasper

Dec 2 – 3, 2012Parks Canada
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Lawinengefahr

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

Snow accumulations will vary greatly across the forecast area. Pay attention to windloading if windspeeds increase into the moderate range in the afternoons.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–3
    A natural avalanche was "heard"  originating on steep unskiable terrain on a predominantly Northeasterly aspect in Hilda creek area. Pay particular attention to steep unsupported wind loaded slopes in the alpine.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–3
    A persistent facetted weakness can be found around a mid-pack crust. There is low likelihood of natural avalanches occurring on this layer but we are watching as each small system deposits more snow load.

Weather Forecast

Light snowfalls will continue through Tuesday in the icefields area with accumulations up to 30+cm.  There will be less snow accumulations around the Jasper townsite.

Snowpack Summary

Hard test results were found at treeline on facets sandwiched between the two crusts in the icefields area. The crusts are deteriorating in this area.  Windslabs continue as the main concern. Winds had shifted to more Southerly flows by late afternoon.

Avalanche Summary

Poor visibility prevented any observations but an avalanche was heard in the Hilda creek area originating from steep unskiable alpine terrain which has a Northeasterly aspect.

Confidence

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

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