Bulletin d’avalanche

Lochaber

SAIS
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Danger d’avalanche

Above 1,000 m
1 · Faible
Above 1,000 m
2 · Modéré
Above 1,000 m
3 · Marqué
Below 1,000 m
1 · Faible
Below 1,000 m
2 · Modéré
Périmé — ce bulletin a expiré 6 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Wet snow

    • Toutes altitudes
  • Cornices

    • Toutes altitudes

Avalanche Activity

Forecast Snow Stability: The snowpack will become very wet. Wet snow instabilities will be present on North to East aspects above 1000 metres. Cornices above these aspects will be prone to collapse. Stability will be worst overnight and during the morning. Below 1000 metres the wet snowpack will be better consolidated, and stability will be better. The avalanche hazard will be Considerable

Snowpack Structure

Forecast Weather Influences: A mild day with rain at times and the freezing level above the summits. Winds from the South. Observed Weather Influences: Overnight the freezing level was around 1050 metres, rising to 1200 metres during the day. Snow overnight above 900 metre turned to rain below 1100 metres during the day. Wind were from the South-West. ObservedSnowStability: Overnight significant quantities of fresh windslab have been deposited above 1000 metres on mainly North to East aspects. This was going through a period of instability as the freezing level rose during the morning. Fresh cornices above these aspects were unstable and prone to collapse. A number of avalanches, at least some of which where cornice triggered, occurred overnight and during the morning. The avalanche hazard is Considerable

Bulletin data: Scottish Avalanche Information Service (via EAWS / avalanche.report)

Régions couvertes