Lawinenlagebericht

Banff Yoho Kootenay

Mar 3 – 4, 2018Parks Canada
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Archiviert · abgelaufen 9 years ago

Lawinengefahr

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

The main concerns right now are small buried wind slabs and sluffing in steep terrain. We have removed the persistent slab problem because of a lack of activity on this layer, but the structural weakness remains and the problem may show up again.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2
    Buried wind slabs exist in lee areas in the alpine. While they may not be very thick or particularly touchy, they certainly have the potential to carry you into an undesirable location (cliffs/terrain traps) if triggered in steep terrain.

Confidence

Weather Forecast

A few more cm's of new snow with light NE winds. Moderately cool temperatures are forecast. Bring spring please.

Snowpack Summary

Buried wind slabs exist in most open areas at higher elevations, with loose surface facets at lower elevations. Mid pack surface hoar is rounding and inactive in tests. Deep facet layers are weak but are presently difficult to propagate.

Avalanche Summary

Small explosive triggered wind slabs were reported at local ski areas Thursday, with the debris entraining surface facets. Surface sluffing was also reported in steep treeline areas in Kootenay. We have not seen any avalanche activity on the persistent layers for about ten days and have removed this as a problem but the structural weakness remains.

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