Wind slab
- Above 900 m
Forecast Snow Stability: Snowfall and drifting will form fresh unstable windslab in wind sheltered locations on North-West through North to Easterly aspects above 900 metres. Gully tops and sharply defined corrie rims will be most affected. Moderately bonded accumulations will be present just below this altitude. Fragile cornices will be present. Wind exposed locations will be scoured and icy. The avalanche hazard will be Considerable.
Forecast Weather Influences: Snowfall, arriving overnight, above 600 metres initially, will be heaviest after daybreak until mid-morning above 850 metres. The winds will be mainly strong South-South-Westerly, later veering West-South-Westerly. 600 metre freezing level overnight, rising briefly to 850 metres during the morning, lowering back down to 600 metres by the end of the afternoon. Observed Weather Influences: After a bright start, cloud quickly built up with light snow showers above 750 metres by early afternoon. Winds were fresh Westerly, easing as they backed to become moderate South-Westerly. The freezing level rose to around 800 metres. ObservedSnowStability: Moderately to weakly bonded windslab is present in wind sheltered locations on North through East to South-East aspects above 900 metres with gully tops and steeper corrie rims most affected. Moderately bonded snow is present just below this altitude and occasionally on isolated North-West aspects above 900 metres. Wind exposed slopes are scoured and firm. The avalanche hazard is Considerable.
Bulletin data: Scottish Avalanche Information Service (via EAWS / avalanche.report)