Winds of 80mph (130km/h) are expected as the remnants of Hurricane Ophelia head towards the UK from the Atlantic Ocean
The Republic of Ireland is bearing the brunt - and gusts of 109mph have already been measured off its south coast
Three people have been killed in separate storm-related incidents in the Irish Republic
Thousands of homes are without power in the Irish Republic
Amber wind warnings are in place in Northern Ireland and in parts of Wales
The Met Office in the UK warns of a "potential danger to life"
Schools are closed in Northern Ireland and the Republic of Ireland because of the weather
The Irish government deploys its army to coastal counties, and Irish bus and tram services have been suspended
The stormy weather being wreaked on Ireland has been gradually heading across the Atlantic for the past week.
RTE News has produced a day-by-day timeline, external tracing the origins of Ophelia back to last Monday, when the US National Hurricane Center issued an advisory about "Tropical Depression 17", situated 875 miles to the west of the Azores.
Over 100 calls have been made by members of the public concerned about homeless people, government minister Eoghan Murphy says.
The Journal tweets...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Andrew Segal
Local Live
Stormy weather as a result of the remnants of Hurricane Ophelia have battered Devon and Cornwall today.
We share some of the effects here.
Image source, PAPorthleven in Cornwall frequently bears the brunt of stormy weather from the south west
Image source, ReutersToday was no exception for Porthleven in the large waves it had to endure
Image source, PAThese two dogs braved winds at Land's End
Image source, Getty ImagesOne kite surfer braved the conditions in Mount's Bay, Cornwall
Image source, Rachael JacksonPlymouth Hoe's seafront takes a bit of a battering earlier
Image source, Nikki ButlerPlymouth's Mountbatten pier suffers water going across it in high winds
Another tweet from someone who disembarked the Ryanair flight from Gatwick to Dublin reveals that passengers cheered when the plane touched down.
Not everyone is in agreement. Another tweeter calls the decision to continue a small number of flights into Dublin "a disgraceful carry-on from Ryanair".
But after a month of bad publicity about cancelled flights, there are several customers who want to praise the airline, including Hennie who flew into Dublin on a Ryanair flight from Edinburgh.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
The Peace Bridge across the River Foyle in Londonderry - one of the city's most famous sights - has been closed as a precaution, the Derry Journal reports., external
Although many flights in and out of Ireland have been cancelled today, a small number did go ahead, mainly to Dublin in the east of the country.
Since midday, Ryanair has cancelled all but one of its services between London's Gatwick Airport and the Irish cities it serves. But one flight did take off and landed at Dublin 75 minutes after its scheduled arrival time. One passenger tweeted her thanks to the airline.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Following the announcement that schools in Ireland would remain closed tomorrow (see 16:22 BST), the Department for Education in Northern Ireland has said those north of the border would be doing likewise.
It comes as the Met Office advised chiefs the storm would be prolonged and severe.
Derek Baker, Permanent Secretary of the Department, said: "I fully appreciate this decision will impact on the work of the schools and indeed on other businesses and services, but the decision has been taken to avoid any potential risk to life for children and young people as well as staff."
The roof from Douglas Community School is seen flying through the air in County Cork.
Ophelia: School roof takes off
A 72-year-old man who took a dip in the sea in Salthill, Galway, as Ophelia blasted the Irish coast says you are only in trouble if you panic.
Timmy Flaherty was in the water for around a minute after walking off the steps on the Blackrock diving boards.
"There's nothing wrong with the water. It's getting back into the tower, that's the trouble," he said.
"You're safe enough in the water - if you don't panic.
"The secret of the whole thing is not to panic. But I stay calm in the water. Once I'm able to do that, I don't care."
BBC Weather says it has recorded a gust of 90mph in Aberdaron, west Wales.
The Department of Education in Ireland has announced all schools will remain closed tomorrow.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
A third person has died in the Republic of Ireland as a result of Storm Ophelia. Gardai say a tree fell on the man's car in Ravensdale, Dundalk.
Prime Minister Theresa May has "expressed her sympathies" to Ireland this afternoon after two people died as a result of Ophelia.
Downing Street said Mrs May spoke to Ireland's Taoiseach Leo Varadkar to confirm the UK government "stood ready to provide any support if requested".
No filter needed on this picture from the University of Derby.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Brexit researcher for BBC Politics tweets...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Image source, PAA number of flights to UK airports have been forced to land or divert following reports of "smoke smells" - which are thought to have a link to Ophelia.
Precautionary landings been reported from planes travelling to Dublin, Manchester, Liverpool and Jersey.
Liverpool John Lennon Airport said the smells appeared to be connected with "atmospheric conditions".
Airlines British Airways, Easyjet and Auringy have all confirmed that the reports of smells on their flights have been linked to weather conditions.
The Met Office said southerly winds had caused warm temperatures and drawn Saharan dust into the atmosphere. It added smoke from wildfires in Spain and Portugal had also blown over.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
The Saharan dust turning the skies across the UK red are offering some great photo opportunities.
The moody skies over Highclere Castle, aka Downton Abbey, would be a cinematographer's dream.
It's just a shame that Julian Fellowes has stopped writing the popular series.
The BBC's Middle East editor, Jeremy Bowen, has tweeted this image from London.
Weather experts say it is caused by Ophelia pulling air and dust from southern Europe and Africa.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Sky News Ireland correspondent tweets a snapshot of Galway...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Ophelia leads to Isle of Man ferry and flight cancellations
All ferry crossings between the Isle of Man and the UK are cancelled as a result of Ophelia.
All ferry crossings between the Isle of Man and the United Kingdom are cancelled as former Hurricane Ophelia arrives.
Read More