Southerly winds will strengthen on Sunday morning with some heavy downpours during the day as a weather front starts to slowly pass over the Western Isles.
The strongest winds will be south of Lewis where gusts up to 60mph may be experienced.
Later on Sunday the wind direction will veer to come from the west and strong gusts will continue.
A forecast of a force nine gale is expected to bring a swathe of 70 mph gusts during squalls in exposed districts and high ground at its peak on Monday morning.
High waves are also expected on Monday morning. High tide is at 4.50am in Barra, 5.20am for Lochmaddy and 5.45am at Stornoway though a storm surge is expected to drive the sea forward ahead of these times.
Winds are expected to start to ease later on Monday though it will still be blustery on Tuesday.
70mph winds forecast at peak of severe gale
30 Sept 2017