Avalanche forecast

Lochaber

SAIS
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Avalanche danger

Above 1,000 m
1 · Low
Above 1,000 m
3 · Considerable
Below 1,000 m
1 · Low
Below 1,000 m
2 · Moderate
Out of date — this forecast expired 6 months ago. You’re viewing past conditions, not the current bulletin.

Avalanche problems

  • Wind slab

    • Above 800 m
  • Cornices

    • Above 900 m

Avalanche Activity

Forecast Snow Stability: Fresh unstable windslab will develop overnight mainly on North to East aspects above 1000 metres with better stability at lower elevations. Fragile cornices will develop above these aspects. The older snowpack will freeze in the cooler conditions and have good stability. The avalanche hazard will be Considerable.

Snowpack Structure

Forecast Weather Influences: Overnight precipitation will fall as snow above 1000 metres initially but down to 700 metres by dawn with a mainly dry day to follow. Gale force South-Westerly winds will ease by dawn and veer to the North-West. The freezing level will drop slowly through the period to around 700 metres in the afternoon. Observed Weather Influences: Gale Force South-Westerly winds today. Snow on the higher summits with rain at lower elevations. The freezing level dropped to around 1100 metres this morning before rising to just above the summits in the afternoon. ObservedSnowStability: Localised areas of moderately bonded windslab are present mainly on North to East aspects above 1150 metres with features such as gully tops and corrie rims most affected. Fragile cornices were developing mainly above these aspects. Isolated wet snow instabilities are also persisting on steep slopes mainly on the same aspects. At lower elevations the snowpack is thawing and stability is good. The avalanche hazard is Moderate.

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

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