Severe gales and storm force winds have been battering north and west Scotland.
A gust of 84mph has been recorded on South Uist.
The gable end of a house in Leverburgh on Harris collapsed onto a neighbouring property in the high winds. No-one was thought to have been injured.
A number of roads and causeways in the Western Isles have been shut. Northern Constabulary said all roads on the islands were severely affected by heavy spray and debris.
Highlands and Islands Fire and Rescue said the wall collapsed on the semi-detached house in Dunmore Crescent in Leverburgh shortly before 22:00.
Fire crews were making the scene safe and people were moved out from neighbouring properties.
The Met Office had warnings in place for much of the country overnight and into Wednesday morning. Some travel disruption was expected.Necessary provisions
Forecasters said a deep area of low pressure could see winds reaching speeds of up to 85mph, with large waves likely along exposed western coasts.
End Quote Insp Robbie MacDonald Northern Constabulary
If travel is essential the public should avoid exposed or coastal areas where gusts could cause significant harm to individuals"
The A82 between Glencoe and Tyndrum was closed for high-sided vehicles due to the high winds.
Comhairle nan Eilean Siar said evening bus services for Lewis, Harris and Uist were being cancelled.
The local authority said most services would stop at about 18:00. Lewis Sports Centre closed at 17:00.
Insp Robbie MacDonald of Northern Constabulary said: "With the impending spell of extreme weather we are due to experience this evening and into tomorrow, I would encourage members of the public not to travel unless it is necessary and have provisions in their homes for possible power cuts.
"If travel is essential the public should avoid exposed or coastal areas where gusts could cause significant harm to individuals.
"Those travelling on causeways or low lying roads should listen to local radio and keep informed as to whether there are any road closures."
He added: "Taking measures to secure items outside properties such as garden furniture and scaffolding, and checking in on elderly neighbours to ensure they have all the necessary provisions is also encouraged."