Lawinenlagebericht

Banff Yoho Kootenay

Nov 20 – 21, 2011Parks Canada
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Archiviert · abgelaufen 15 years ago

Lawinengefahr

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

Another cold day ahead, followed by a warming trend and little to no snow in the immediate forecast.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–3
    All slopes that look inviting for skiing have a wind slab over depth hoar layering. Cracking, whumphing, natural and skier triggered avalanches have been observed. This layer collapses with Easy results. Pick lower angled low consequence terrain.

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–3
    Several, 2 day old, downed avalanches observed on the Hwy 93 N failed in the midpack (photos on the ACMG mountain conditions report), beneath cliffs or on convex rolls. We are uncertain of the failing layer, but it could be preserved surface hoar.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–3
    Steep open slopes at and above treeline have a soft to hard wind slab that is sensitive to human triggering near the ground on the basal depth hoar. Wind loading triggered Na avalanches up to size 2.5 that failed to ground in the last 48 hrs.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Abgedeckte Regionen