Storm Brendan has hit the UK, bringing rain and gusts of more than 80mph to parts of the country.
The Met Office has issued a 14-hour yellow warning for wind, covering the UK’s west coast, Northern Ireland, parts of Wales and north-east Scotland.
In NI, thousands of homes have lost power, roads have been shut and part of a sea wall in Carrickfergus collapsed.
On the Isle of Man, a bin lorry was blown over, with the driver needing medical treatment.
Meanwhile, all schools in the Western Isles were closed and bus services on the islands cancelled.
In Wales, nearly 900 homes have been left without power, and a school was closed due to a power failure after a tree fell on power lines and also hit a car at Bontnewydd, Gwynedd.
Flights and ferry services across the UK have also been disrupted.
Storm Brendan has been brewing in the Atlantic over the last 24 hours.
The turbulent weather is set to continue into the evening with heavy rain sweeping eastwards and bringing “challenging” rush hour conditions, BBC Weather’s Susan Powell said.
Strong winds are forecast widely along the southern and western coast of the UK, with gusts of between 65 and 70mph around western coastal areas.
And there could be storm force gusts of up to 90mph in north-west Scotland, forecasters say.
By 14:00 GMT a gust of 87.5mph had been recorded on South Uist.
NI was among the first parts of the UK to be battered by Storm Brendan.
About 2,000 customers remain without electricity and power has been restored to 6,400 Northern Ireland Electricity users, after damage to the network.
Roads have been closed including a stretch of the Belfast Road in Carrickfergus after part of the sea wall has collapsed.
At Belfast International Airport – where there has been some disruption to flights – passengers were stuck on one plane for two hours after wind speeds were too high to disembark.
BBC presenter Holly Hamilton, who was on board, said: “The captain announced we would be unable to disembark as the wind speed was at 46 knots and it needed to be a maximum of 40 to allow the steps to be brought out to allow passengers off.
“Everyone understood why it was necessary as the plane itself was swaying from side to side when we weren’t even in motion.
“Most people were just relieved we’d landed safely as it was a pretty choppy landing.”
All the open spaces and play parks in Derry City and Strabane District Council have also been shut because of high winds.
The Met Office has one yellow weather warning for wind – meaning travel disruption is likely – in place on Monday, lasting from 10:00 GMT until midnight.
It covers Northern Ireland, Wales, the South West and the west coasts of England and Scotland, as well as north-east Scotland.
It warned people should expect travel delays, large waves along coastal roads and sea fronts and power cuts.
More wind on Tuesday
Three more yellow weather warnings are in place for Tuesday – including one for wind across England and Wales from 12:00 GMT until midnight and another for snow and ice in northern Scotland.
The third warning, for heavy rain, covers south-east England from 13:00 on Tuesday until 9:00 on Wednesday.
All Skybus flights between Cornwall and the Isles of Scilly were cancelled on Monday, with a warning that gale-force winds could see more disruption on Tuesday.
On Monday morning rush hour, trains running through Preston station were suspended after the roof was damaged. Services are now returning to normal, Northern Rail said.
Ferry routes covering much of the west coast of Scotland as well as the Northern Isles have been cancelled or disrupted.
Meanwhile, the Scottish Environment Protection Agency (Sepa) has issued 25 flood warnings and 16 flood alerts around the country.
“Combined with naturally high tides next week, the sustained winds will create an unusual and dangerous combination of tide, storm surge and inshore waves,” said Sepa.
On the Isle of Man, roads were closed, winds brought down trees, and flights and ferries were cancelled.
Storm Brendan’s name was picked by the Irish meteorological service Met Éireann.
In December, Storm Atiyah swept into the UK, leading to power cuts and travel disruption in Wales and the South West.
This year’s storm names have already been chosen with Ciara the name for the next storm.
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