Bulletin d’avalanche

Northern Wallowas

Wallowa Avalanche Center
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Danger d’avalanche

Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
Périmé — ce bulletin a expiré 6 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Be wary of traveling on or under steep terrain at or near ridgelines today and tomorrow. Expect to see potentially reactive windslabs in these zones on leeward facing terrain.

Problèmes avalancheux

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Dry loose avalanches were evident and widespread yesterday in the Elkhorns on terrain steeper than 35 degrees. I suspect we might see similar conditions in the Southern Wallowas today. On large steep slopes it would be easy to trigger a sluff that could entrain enough snow to carry a recreationalist into trees,over a rock band, or into a nasty gully.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    Wind slab formation was observed in the Southern Wallowas during last week's snow event that dumped about 18" of snow in the Norway Basin area. Strong southerly winds last weekend added more snow to the existing windslabs especially at or near ridgelines. Although a few days have passed since that wind event I would expect to see these potentially reactive, unstable pillows of snow, especially on leeward facing terrain in the alpine and at ridgelines.

Avalanche Discussion

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