Wind slab
- Above 900 m
Forecast Snow Stability: Significant areas of moderately bonded windslab will remain, mainly on North-East to South-East aspects above 900 metres. Fresh deposits of windslab will accumulate in these areas overnight and through the morning. Some significant cornices exists above these aspects. At lower levels, and on windward aspects stability will be better. The avalanche hazard will be Considerable
Forecast Weather Influences: Overnight snow showers easing through the day. Gale force Westerly winds will also ease slightly through the day. The freezing level will be around 700 metres. Observed Weather Influences: Heavy snowfall turned to rain below about 1000 metres during the morning as the freezing briefly rose to the higher summits. The afternoon was showery with the freezing level dropping to about 800 metres. Gale force winds were from the South-West. ObservedSnowStability: Unstable windslab was deposited on mainly sheltered North to East aspects above 900 metres early morning. This went through a period of instability during the morning as the temperature rose. Fresh debris was noted below a number of gullies on Ben Nevis. There was some consolidation of the existing snowpack during the afternoon. However, fresh areas of windslab were being deposited on the locations mentioned above through the afternoon. The avalanche hazard is Considerable.
Bulletin data: Scottish Avalanche Information Service (via EAWS / avalanche.report)