Bulletin d’avalanche

Nock Mountains

LWD Salzburg
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Danger d’avalanche

Above treeline
2 · Modéré
Below treeline
1 · Faible
Périmé — ce bulletin a expiré 3 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Trigger-sensitive drifts due to stormy S/W winds

Problèmes avalancheux

  • Wind slab

    • Toutes altitudes
  • Gliding snow

    • Toutes altitudes

Avalanche Activity

Trigger-sensitive drifts due to stormy S/W winds

Avalanche danger above the treeline is moderate, below that altitude danger is low. Fresh drifts cna be triggered as small-to-medium slab avalanches by 1 person on N/SE facing slopes. Danger zones occur in gullies, bowls and behind discontinuities, near to and distant from ridges. Frequency and size of danger zones increase swiftly with ascending altitude. Up to 2600 m glide-snow avalanches can trigger naturally at any time of day on very steep slopes with smooth ground surfaces. Avoid zones below glide cracks.

Snowpack Structure

On Sunday night, the fresh snow settled somewhat amid rising temperatures (sink-in depths 10-15 cm) and the proneness to triggering has receded. Weak layers are evident inside the fresh fallen snow wherever snowdrifts lie deposited on top of fresh snow. In some places, surface hoar has been blanketed over. Crusts and faceted layers lurk in the old snowpack on shady slopes, as tests confirm. The snowpack is highly irregular, making weak layers small. The snowpack base is stable and thoroughly wet up to intermediate altitudes. The warm ground leads to the entire snowpack gliding downhill over smooth ground.

Weather Forecast

On Tuesday night a bit of rainfall (above 1600-2000 m snowfall) is possible. During the daytime on Wednesday, high-altitude clouds, frequent sunshine, diffuse light conditions. The W/SW winds will be moderate to strong (40 km/hr). At 2000 m: 0 degrees; at 3000 m: -6 degrees.

Tendency

Avalanche danger levels are not expected to change significantly.

Bulletin data: Avalanche Warning Service Salzburg (CC BY 4.0)

Régions couvertes