Vehicles have been blown over in Scotland and roads in some areas are closed due to debris from Storm Éowyn, with a gust of 86mph recorded at Dundrennan in Dumfries and Galloway at 9am, reports the PA news agency.

Police Scotland said no motorists should travel in or to the red weather warning area. They said the A1 between Spott Roundabout and Cockburnspath, East Lothian, is closed due to a number of overturned vehicles. Emergency services are at the scene and people have been warned to avoid the area.

The A709 is closed on the Lockerbie side of Lochmaben in Dumfries and Galloway due to fallen trees between Lochmaben High Street and the Halleaths junction.

The A75 has closures at Collin bypass and Skyreburn Bridge, Dumfries and Galloway, due to fallen trees, as does the A76 at Newbridge, Leswalt High Road in Stranraer, the A746 at Glasserton Road, Newton Stewart, and the A709 at various places surrounding the Lockerbie area.

Road maintenance firm Bear Scotland shared an image of an overturned lorry on the A1 at Torness, reports the PA news agency.

Here are the weather warnings for various parts of the UK and Northern Ireland, plus the time period each covers:

• Red warnings are in place in Northern Ireland from 7am until 2pm on Friday, and for western and central areas of Scotland between 10am and 5pm, with speeds of up to 100mph likely along coasts.

• Amber wind warnings are also in place for Northern Ireland, the southern half of Scotland, northern England and north Wales between 6am and 9pm on Friday, and the northern half of Scotland from 1pm on Friday to 6am on Saturday. Winds reaching 60 to 70mph will be widespread in these areas, with up to 90mph possible on coastal areas.

• A further yellow wind warning covers the rest of UK for all of Friday.

• Yellow warnings for snow are in place in Scotland, from 6am to midnight, and rain in south-west England and Wales until 9am.

Millions of people have been urged to stay at home as 100mph winds pose a danger to life and cause travel disruption across the UK, reports the PA news agency.

About 4.5 million people received emergency alerts on their phones warning of the incoming storm in the “largest real-life use of the tool to date” on Thursday, reports the PA news agency, with more amber and yellow weather warnings for wind and rain issued for across the weekend.

Rail services, flights and ferries have been axed, with rare red weather warnings in place on Friday in Scotland and Northern Ireland as Storm Éowyn batters the country.

Train operator ScotRail has suspended all services across Scotland on Friday, saying it “would not be safe to operate passenger services”, with Calmac and Western Ferries services also cancelled because of weather conditions. Other services affected by the storm include Avanti West Coast, LNER, West Midlands Railway, Lumo, Transport for Wales and South Western Railway.

The storm is likely to damage buildings, uproot trees and cause power cuts, according to the Met Office alerts.

Northern Ireland’s first minister, Michelle O’Neill, urged people to stay at home, adding “we are in the eye of the storm now”, in an interview with BBC Radio Ulster.

As of Friday morning, more than 93,000 homes and businesses were left without power in Northern Ireland as the storm caused “widespread damage” to electricity networks, according to NIE Networks.

More than 715,000 homes, farms and businesses are without power across the Republic of Ireland after Storm Éowyn caused “unprecedented” damage to electricity infrastructure, the Irish Electricity Supply Board (ESB) said.

Hundreds of schools and nurseries across Scotland will be closed on Friday as first minister, John Swinney, warned residents not to travel.

Air travel has also been disrupted, with at least 334 flights cancelled across airports in Aberdeen, Belfast, Edinburgh and Glasgow, affecting about 50,000 passengers, according to analysis by the PA news agency of flight tracking website FlightRadar24.

Motorists in areas covered by red and amber weather warnings have been told to avoid travel “unless absolutely essential”. National Highways said the A66 between the A1M in North Yorkshire and M6 in Cumbria, as well as the A628 Woodhead Pass in Derbyshire and South Yorkshire, were both closed overnight due to strong winds. The M62 Ouse Bridge in East Yorkshire has also been closed to high-sided vehicles.

On Friday morning, a record-breaking wind speed of 114mph (183kmh) was measured in Mace Head, County Galway in Ireland, Met Éireann said. The previous highest wind speed on record was 113mph (182kmh) set in January 1945 in Foynes, County Limerick, according to the weather service.

In Wales, winds reached a top speed of 93mph in the Welsh village of Aberdaron, Gwynedd, on Friday morning, the Met Office said.

Red warnings are in place in Northern Ireland from 7am until 2pm on Friday, and for western and central areas of Scotland between 10am and 5pm, with speeds of up to 100mph likely along coasts, the forecaster said.

Amber wind warnings are also in place for Northern Ireland, the southern half of Scotland, northern England and north Wales between 6am and 9pm on Friday, and the northern half of Scotland from 1pm on Friday to 6am on Saturday. Winds reaching 60 to 70mph will be widespread in these areas, with up to 90mph possible on coastal areas. A further yellow wind warning covers the rest of UK for all of Friday.

Yellow warnings for snow are in place in Scotland, from 6am to midnight, and rain in south-west England and Wales until 9am.

RAC Breakdown advised motorists in warning areas to stay safe by parking away from trees, keep a firm grip on the steering wheel, avoid coastal routes and watch out for debris.

Northern Ireland is in “the eye of the storm right now” first minister, Michelle O’Neill, has said with a real threat to life and property, and more than 70 reports of trees down and almost 100,000 homes and premises without power.

Radar pictures issued by Met Éireann for the island of Ireland at 8.30am on Friday showed Storm Éowyn barrelling across Ulster after it moved northwards from the republic where record gusts of 113mph were recorded overnight.

Schools, colleges and the courts in Northern Ireland have been closed and flights closed as the storm moves across the Irish sea to Scotland.

Alliance party MP, Sorcha Eastwood, posted a photograph of a telegraph pole lifted from the ground by the force of the wind on Friday morning in Blaris.

The severe red alert weather warning remains in place from 7am on Friday until 2pm.

Assistant chief constable Davy Beck said there have been wind speeds in excess of 70mph.

“We’re seeing significant amounts of debris right across the road network,” he told BBC Radio Ulster. “The road network is dangerous and the message remains stay at home, stay safe and stay off the roads please.”

O’Neill told BBC NI:

We’re in the eye of the storm now. We are in the period of the red alert.

People can see for themselves, the wind has been very much picking up overnight.

I think the real message we want to get across to your listeners this morning is to please be ultra cautious, to please stay at home if you can and actually we will see how the storm will rage. But the scale of the storm, the level of wind that we’ve experienced across the island, which is something that’s never been seen before.”

Approximately 150,000 premises in Ireland are at risk of water supply issues due to power outages affecting the water network, reports the PA news agency.

Irish Water said the majority of these customers should still have water due to storage in reservoirs.

The agency said significant disruption is expected due to Storm Éowyn, adding that its crews will begin restoring supply when it is safe to do so.

In a statement, it added:

In areas where supply has been disrupted, most properties should have adequate storage in their attic tanks for hygiene purposes for at least 24 hours.

However customers are urged to conserve water where possible in order to protect supply while the outages are resolved.”

Reporting from Dublin:

More than 715,000 homes are without power in Ireland.

The Electricity Supply Board (ESB) said the power cut was “unprecedented” and would only get worse.

It said:

We anticipate significant further outages as Storm Éowyn continues to track across the country.

Extreme, damaging and destructive winds associated with Storm Éowyn have continued to cause widespread and extensive damage to the electricity network across the country with over 715,000 homes, farms and businesses (as at 8am) without power.”

Shannonside Radio covering the midlands and border counties is reporting multiple incidents including a roof blown off a house in Fourmilehouse in county Roscommon. The occupants have not been injured, it reported.

Police in Northern Ireland have declared a major incident and said they expect the strongest winds in the region since the Boxing Day storm in 1998 which caused widespread disruption.

Speaking to media in Belfast on Thursday afternoon first minister, Michelle O’Neill, and deputy first minister, Emma Little-Pengelly, urged people to stay at home where they can and check on vulnerable people.

O’Neill described an “evolving situation” which they are “very closely monitoring”. “But the key message is to stay safe, to look after yourself, to look after your family and to look after your friends and check in on those people who are more vulnerable,” she said, according to the PA news agency.

Little-Pengelly added that experienced emergency teams are ready to respond during the expected severe weather in Northern Ireland on Friday.

“A red alert has been issued for the entire of Northern Ireland,” she said, adding:

This is highly unusual, this means between 7am and 2pm tomorrow there is a likelihood of widespread disruption, danger to life and damage to buildings, and our strong advice and the advice of the PSNI is to stay at home if at all possible.”

Reporting from Dublin:

More than 500,000 homes are without power in Ireland with gusts of 183kph (113mph) recorded in Galway.

The entire island of Ireland is under a red weather alert with Met Éireann warning that the winds lashing the country have not reached their strongest yet.

People have been advised to stay indoors with a risk of death or destruction from falling trees and debris.

Force 10 to 12 winds are battering the coast with winds moving north across the morning. Northern Ireland is currently under a severe wind warning.

Multiple incidents of trees blocking roads have been recorded. One passenger who tried their luck heading to Shannon airport for a flight that was cancelled said the motorway was deserted apart from fallen branches everywhere.

Residents across Ireland have been urged to stay at home due to Storm Éowyn, reports the PA news agency.

The top-level red warning for wind is in place in both Northern Ireland and the Republic of Ireland from early on Friday morning.

Schools and colleges across Ireland are set to close and public transport came to a halt, reports the PA news agency, amid powerful gusts with warnings of danger to life, fallen electric lines, damaged infrastructure and widespread power outages.

Dublin airport announced more than 110 scheduled departures and 110 arrivals had been cancelled by airlines for Friday.

Met Éireann reported the mean wind speed record of 81mph set in 1945 at Foynes County Limerick had been broken during the storm. The weather service said gusts of up to 108mph had been recorded at Mace Head off Ireland’s west coast by 4am on Friday.

The storm has caused extensive and widespread damage to the electricity network, with power outages nationwide affecting 560,000 homes, farms and businesses.

Irish state-owned electricity company, ESB, says it expects significant further outages as Storm Éowyn moves across the country.

The chair of Ireland’s national emergency coordination group, Keith Leonard, said Storm Éowyn will be one of the most severe storms Ireland has seen. “It is going to be a damaging, dangerous and destructive weather event,” he said in Dublin on Friday.

He added:

The forecasted winds will bring severe conditions which will constitute a risk to life and property.

Our most important message today is that everybody needs to shelter in place for the duration of all red warnings.

We are likely to see significant and widespread power outages, so I would encourage everyone to prepare ahead. Make sure phones, torches and laptops are fully charged.”

The Police Service of Northern Ireland described the storm as an “exceptional weather event” and said it was expected to bring the strongest winds seen in the region since 1998.

Red warnings for wind have been issued by the Met Office for much of Northern Ireland from 7am until 2pm on Friday.

You can check out the Met Office map of warnings across the UK here.

Police Scotland Chief Superintendent Hilary Sloan said: “Our advice to any road user is not travelling, and that’s really the message we want to get across today.

It’s really unusual for us to have a red weather warning and that advice is in place for the duration of that warning.”

A wind speed of 114mph brought by Storm Éowyn has been recorded in Ireland, the fastest since records began, forecaster Met Éireann said.

Flights have been delayed, roads closed and ferry services cancelled as 100mph winds from Storm Éowyn pose a danger to life in parts of the UK on Friday morning.

As PA Media reports, rail services and flights have been axed, with rare red weather warnings issued for Scotland and Northern Ireland as Storm Éowyn is likely to damage buildings, uproot trees and cause power cuts, the Met Office said.

Train operator ScotRail suspended all services across Scotland on Friday, saying it “would not be safe to operate passenger services due to forecast weather conditions”.

Dozens of flights from Glasgow and Edinburgh airports were cancelled on Friday morning due to ongoing weather conditions, while Belfast International warned of significant disruption to flights.

A number of train companies including Avanti West Coast, Lumo, CrossCountry and Grand Central have also told customers not to travel on routes across parts of north Wales, Scotland and northern England with no services running.

Passengers and motorists in areas covered by red and amber weather warnings have been told to avoid travel “unless absolutely essential”.

We’ll bring you more as it develops this morning.