A second person has died as Storm Babet batters large parts of the UK.

Police Scotland said a 56-year-old driver was killed after a tree struck a van on the B9127 at Whigstreet near Forfar at around 5.05pm on Thursday.

It comes as a rare red weather alert issued by the Met Office, warning of a “danger to life from fast flowing or deep floodwater” in parts of Scotland, was extended until midnight on Saturday.

It now covers the Grampian and Central, Tayside and Fife regions. It had already been expanded to include Dundee, Perth and Kinross, as well as Angus and Aberdeenshire, where 20ft waves have been spotted on the coastline.

Storm Babet latest: ‘Serious emergency’ declared by Scottish council

Meanwhile, a major search was under way following reports of a man trapped in a vehicle in floodwater.

Police Scotland said the alarm was raised at 3am on Friday near the village of Marykirk in Aberdeenshire.

“Multi-agency searches are ongoing and the public are asked to avoid the area for their safety,” a force spokesperson said.

As England, Wales and Northern Ireland faced warnings about heavy rain, Scotland continued to bear the brunt, where emergency crews have also been trying to rescue people in Brechin.

The town has been the hardest hit by the unprecedented flooding – and there are fears people who have had to flee their homes may not be able to re-enter until after Christmas.

The Met Office said some communities could be cut off for several days at least by severe flooding, while the British Geological Survey has warned the storm could also cause landslides in Scotland.

The Scottish Environment Protection Agency (SEPA) has five severe flood warnings, 11 flood alerts and 16 flood warnings in place, with the threat of “unprecedented” levels of rainfall in the northeast of Scotland.

It has warned rivers could rise by as much as five metres, in what has been described as an “extraordinary” weather event.

SEPA flood duty manager Pascal Lardet said: “There is exceptional rainfall forecast for parts of Scotland over the next 24 hours, and this will lead to significant flooding from both surface water and rivers.”

Check what the weather forecast is in your area

‘People may not be back in their homes by Christmas’

It comes after a woman died in Scotland when she was swept into a river amid gale-force winds and severe flooding.

The body of the 57-year-old has been recovered after she was swept into the Water of Lee, a river in the eastern area of Angus on Thursday.

Officials have ordered the evacuation of 400 homes in and around the town of Brechin where flood defences breached.

Angus Council, which serves the town near the eastern Scottish coast, said parts of Brechin are only accessible by boat and added: “Angus is in the middle of a very serious emergency. Flooding is unprecedented. Levels are over half a metre over the last highest ever.”

It said schools would be shut on Friday to “ensure the safety of children, young people, parents, and school staff”.

Scotland’s First Minister Humza Yousaf said: “I cannot stress how dangerous conditions are in Brechin in particular.”

Brechin councillor Jill Scott said: “It’s horrific. It’s just absolutely horrendous. I’ve never seen anything like it.”

She added people had been trapped for hours, warning: “There will be hundreds of houses flooded.”

Another Brechin councillor, Gavin Nicol, warned some people may not be able to get back in their homes by Christmas, adding: “It’s just a disaster. The water is not going down, it is still rising.”

Officials have also appealed for donations of warm clothes after 40 people turned up to rest centres while “soaked”.

Warnings have ‘come to fruition’

Around 20,000 properties were hit by power cuts, although Scottish and Southern Electricity Networks (SSEN) said electricity had been restored to almost 18,500 homes.

Angus experienced the highest rainfall in the UK on Thursday, according to data from SEPA. The Met Office revealed that Waterside Perth in East Grampian recorded 164mm over the previous 24 hours, followed by Invermark – which had 153mm.

“Torrential and ferocious” conditions have led to “12 hours of destruction”, said Sky’s Scotland correspondent Connor Gillies.

Flood defences of the River Esk in Brechin have been “completely and utterly submerged”, he said.

The warnings have “come to fruition” and “lives are at risk still” for several more hours, said Gillies.

“Many people will now be picking up the pieces after a really dangerous set of circumstances,” he said.

Traffic Scotland said several sections of major Scottish roads are closed too, including the A85 at Huntingtower near Perth and A90 between Myrekirk and Swallow Roundabouts due to flooding.

Aberdeenshire Council said supplies of sandbags had been “depleted” and would not be replenished. It urged residents not to travel unless it was “absolutely essential”.

‘Extraordinary’ weather event

More disruption is expected elsewhere across the UK, with amber warnings for wind and rain issued for parts of northern England, the Midlands and northern Wales from noon on Friday to 6am on Saturday.

The Environment Agency has issued 42 flood warnings – in areas where flooding is expected – and 142 flood alerts, where flooding is possible.

Yellow and amber wind warnings have been issued for eastern parts of Scotland and along the east coast of England until the weekend, the Met Office said.

Gusts in excess of 60mph are likely on Friday, with particularly poor conditions on immediate coastlines with large waves adding to the list of hazards.

In the north east of England, South Shields Lighthouse lost its dome in the storm, as huge waves battered the structure.

The Port of Tyne authority said with the ongoing dangerous sea conditions, it was not safe to assess the damage to the lighthouse.

People have been urged to steer clear of the area, particularly the piers.

No traffic is going in and out of the river with six metres of sea swell, officials added.

Flooding has also blocked several rail lines across northern England, the Midlands and north Wales.

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A yellow warning for Northern Ireland is also in place from 3am on Friday to 9am on Saturday.

Members of the Irish Defence Forces were deployed in the town of Midleton, Co Cork, in the south of Ireland, where more than 100 properties were flooded.

Cork County Council said more than a month’s worth of rain had fallen in the space of 24 hours, leading to unprecedented flooding, saturated land and high river levels across the county.

The storm is an “extraordinary” weather event created by a number of interacting conditions, said Hannah Cloke, professor of hydrology at the University of Reading.

The jet stream has been squeezed into a “weird position”, partly due to a typhoon that hit Japan last week, she said.