Bulletin d’avalanche

Southern Cairngorms

SAIS
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Danger d’avalanche

Above 900 m
1 · Faible
Above 900 m
2 · Modéré
Below 900 m
1 · Faible
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

SC for 15.2: Instabilities found within snowpack on W to N aspects above 900m. Esp gully tops and coire rims. Cornices. Moderate Haz

Problèmes avalancheux

  • Wind slab

    • Toutes altitudes
  • Persistent weak layers

    • Toutes altitudes
  • cornice_failure

    • Toutes altitudes

Avalanche Activity

SC for 15.2: Instabilities found within snowpack on W to N aspects above 900m. Esp gully tops and coire rims. Cornices. Moderate Haz

Forecast Snow Stability: Instabilities within the snowpack will persist on West and North-West aspects above 900 metres. Localised areas of unstable windslab will develop through the forecast period on mainly North aspects also above 900 metres. Areas most affected will be steep wind sheltered locations such as gully tops and coire rims. Cornices will be found on West to North aspects. The old snow will be icy, hard with good stability. The avalanche hazard will be Moderate.

Snowpack Structure

Forecast Weather Influences: A dry day is expected with the exception of some light snowfall during the afternoon. It will remain cold with the freezing level around 200 metres, rising to 400 metres in the afternoon. Winds will be fresh from the South-South-East with a lull for a few hours in the early hours before backing East and becoming fresh once again. Observed Weather Influences: A light dusting of fresh snow at all levels overnight cleared to leave a dry day with bright spells developing during the afternoon. Winds were fresh from the South-East. The freezing was at 200 meters at midday. ObservedSnowStability: Instabilities within the snowpack are present on West and North-West aspects above 900 metres. Areas most affected are coire rims, gully tops and other steep wind sheltered locations. Accumulations of fresh unstable windslab was identified on North and North-East aspects but these are shallow in nature and isolated. The old snow pack is firm with good stability. Cornices can be found on West through North to North-East aspects and remain a threat from collapse. The avalanche hazard is Moderate.

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

Régions couvertes