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Britain’s three-day 86F heatwave set to end as Met Office predicts flooding, lightning and storms

Britain’s shortlived 86F heatwave came to an abrupt end on Wednesday after a severe weather warning was put in place across parts of the UK with thunderstorms and heavy downpours expected. 

Thousands headed to parks and beaches to lap up the final rays of summer, as experts warn of the risk of travel disruption and 30 to 50mm of rainfall potentially falling in parts of south west England and parts of Wales on Wednesday and Thursday.

The late blast of warm weather will see temperatures reach 86F according to the Met Office, but comes too late for many children to fully enjoy with millions returning to classrooms this week after a damp and dreary staycation summer.

Thunderstorms and heavy rainfall have already lashed parts of the south-west of England on Wednesday morning, with a Plymouth primary school having to be evacuated after staff told of a burning smell after the side of the school building was struck by lightning.

Elsewhere, in south Devon, a crafty kayaker has been pictured paddling down a flooded street in Salcombe after the coastal town was battered by flash floods and power cuts – with eyewitnesses reporting the town was ‘under several feet of water’. 

Low pressure heading north-bound from the Atlantic is expected to sweep away any remaining sunshine and bring with it heavy rainfall, before the prolonged period of heat can be officially declared a heatwave.

Yesterday, temperatures hit 87.2F (30.7C) in Gogerddan, Wales which was just the seventh time the mercury has exceeded 30C in September in the last fifty years. 

That was the highest figure across the UK since July 22, making it the hottest day the country has seen for more than a month.  

Britain’s 86F heatwave has given way to thunderstorms, heavy downpours and even hail in some parts of the nation as a severe weather warning was issued by The Met Office. Pictured: Cars navigate flooded roads in Plymouth on Wednesday

Lightning swept through Plymouth in Devon on Wednesday as the scorching start to September came to an abrupt end

Lightning swept through Plymouth in Devon on Wednesday as the scorching start to September came to an abrupt end

Met Office yellow weather warning

A yellow weather warning has been put in place across large swathes of the UK as experts warn of the risk of travel disruption and 30 to 50mm of potential rainfall

A yellow weather warning has been put in place across large swathes of the UK as experts warn of the risk of travel disruption and 30 to 50mm of potential rainfall

In south Devon, a crafty kayaker has been pictured paddling down a flooded street in Salcombe after the coastal town was battered by flash floods and power cuts

In south Devon, a crafty kayaker has been pictured paddling down a flooded street in Salcombe after the coastal town was battered by flash floods and power cuts

Britain's three-day 86F heatwave set to end as Met Office predicts flooding, lightning and storms

Central, eastern and northern parts of England are expected to remain dry throughout Wednesday, with central England in particular expected to bake in near record-breaking September sun. Above: Beachgoers in Dorset

Central, eastern and northern parts of England are expected to remain dry throughout Wednesday, with central England in particular expected to bake in near record-breaking September sun. Above: Beachgoers in Dorset

People enjoy the sunshine and high temperatures on Whitby beach in Yorkshire on Wednesday, September 8

People enjoy the sunshine and high temperatures on Whitby beach in Yorkshire on Wednesday, September 8

People flocked to their favourite British beaches today to lap up the final rays of 86F September sun. Above: Beachgoers at Cullercoats Bay, north Tyneside

People flocked to their favourite British beaches today to lap up the final rays of 86F September sun. Above: Beachgoers at Cullercoats Bay, north Tyneside

The late blast of warm weather will see temperatures reach 86F according to the Met Office , but comes too late for many children to fully enjoy with millions returning to classrooms this week after a damp and dreary staycation summer

The late blast of warm weather will see temperatures reach 86F according to the Met Office , but comes too late for many children to fully enjoy with millions returning to classrooms this week after a damp and dreary staycation summer

Thunderstorms and heavy rainfall have already lashed parts of the south-west of England on Wednesday morning, with Mount Street Primary School, Plymouth having to be evacuated after reports of lightning hitting the building

Thunderstorms and heavy rainfall have already lashed parts of the south-west of England on Wednesday morning, with Mount Street Primary School, Plymouth having to be evacuated after reports of lightning hitting the building

Two fire appliances responded to the incident at around 10am on Wednesday, with pupils being sent home after staff reported a 'burning smell' in the building

Two fire appliances responded to the incident at around 10am on Wednesday, with pupils being sent home after staff reported a ‘burning smell’ in the building

People head out to enjoy the warm sunny weather near Tower Bridge in London on Wednesday morning as temperatures are expected to hit 86F in some parts of the country

People head out to enjoy the warm sunny weather near Tower Bridge in London on Wednesday morning as temperatures are expected to hit 86F in some parts of the country

Thunderstorms and heavy rainfall have already lashed parts of the south-west of England on Wednesday morning. Above: Flash flooding devastates a high street in south Devon

Thunderstorms and heavy rainfall have already lashed parts of the south-west of England on Wednesday morning. Above: Flash flooding devastates a high street in south Devon

Sunseekers at Bournemouth Beach, Dorset set up to enjoy the last blast of September sun before thunderstorms and heavy downpours look set to ravage large parts of Britain later this week

Sunseekers at Bournemouth Beach, Dorset set up to enjoy the last blast of September sun before thunderstorms and heavy downpours look set to ravage large parts of Britain later this week

Thousands are set to head to parks and beaches to lap up the final 86F rays of summer. Pictured: Crowds start to gather at Bournemouth Beach, Dorset

Thousands are set to head to parks and beaches to lap up the final 86F rays of summer. Pictured: Crowds start to gather at Bournemouth Beach, Dorset

Punters were pictured enjoying a break in the September sun on the River Cam, Cambridge on Wednesday

Punters were pictured enjoying a break in the September sun on the River Cam, Cambridge on Wednesday

Hundreds of people were pictured soaking up the last of the summer rays in Dorset on Wednesday morning

Hundreds of people were pictured soaking up the last of the summer rays in Dorset on Wednesday morning 

Tourists make the most of the UK's 86F weather as they enjoy a punting tour along the River Cam in Cambridge

Tourists make the most of the UK’s 86F weather as they enjoy a punting tour along the River Cam in Cambridge

A severe weather warning has been put in place across much of the south west and Wales on Wednesday. Above: People cycle on the sea front of Bournemouth Beach in Dorset

A severe weather warning has been put in place across much of the south west and Wales on Wednesday. Above: People cycle on the sea front of Bournemouth Beach in Dorset

On Wednesday, Wales experienced its warmest September night on record, while temperatures in Scotland on Wednesday reached the highest since 1906.

The Met Office confirmed that Aberporth, Ceredigion, recorded a 24-hour minimum temperature of 68.9F (20.5C) – breaking the previous record of 66F (18.9C) in Rhyl, Denbighshire, in 1949.

This also means that people in the area experienced a tropical night, as temperatures remained above 20C.

Charterhall in the Scottish Borders had reached 83.4F (28.6C) by mid-afternoon on Wednesday, making it the warmest September day in the country since 1906, when Gordon Castle in Moray reached 89.96F (32.2C).

The high temperatures came as the UK was braced for storms, with heavy showers expected on Wednesday afternoon and a yellow weather warning issued in most areas on Thursday.

Central, eastern and northern parts of England are expected to remain dry throughout Wednesday, with central England in particular expected to bake in near record-breaking September sun. 

The western and southern regions can expect a cloudier day, with showers – some heavy and thunderstorm – predicted throughout the late morning and early afternoon. 

But, the scorching start to September looks set to be heading to an abrupt end, with a yellow weather warning in place amid fears of flash flooding, thunderstorms and travel disruption.

Heavy rain arrived in the Plymouth and South West Devon area including Newton Ferrers shortly after 9am on Wednesday, after the Met Office issued an amber weather warning for the region.

PC Emma Buley said: ‘Flash floods in Salcombe this morning has affected dozens of businesses.

‘Please be careful driving if you get caught in the rain today.’

Grahame Madge, a Met Office spokesman, said: ‘It’s looking like a mixed picture for much of the country this week.

‘We’re seeing high pressure bringing with it high temperatures before eventually breaking down, bringing with it intense lightning activity and downpours across the south west region.

‘By Thursday, conditions will see temperatures drop further, to around the mid-20s, with potential showers, clear breaks and being brighter in areas.’ 

Videos filmed in Salcombe showed the main shopping street swamped with water, while a kayaker was also pictured paddling past the shops.

Another video, also filmed in the town, showed people wading through the floodwater next to stationary vehicles.

It is understood the rain fell for just five minutes before flooding was reported.

Forecasters are predicting a risk of properties flooding across Northern Ireland and the South West, Midlands and North of England, as well as potential hail and thunderstorms battering much of the nation later this week.

The Met Office issued a yellow weather warning for thunderstorms in the area on Wednesday, warning that homes and businesses could be flooded.

It added: ‘Spray and sudden flooding could lead to difficult driving conditions and some road closures.

‘Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services.

‘There is a small chance that some communities become cut off by flooded roads.

‘There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost.’

It is understood the fallout from Hurricane Ida – which has torn across southern states in the US – has forced a change in the UK after weeks of dull grey skies and rain caused by high pressure.

Ida sent warm, humid air into the North Atlantic, which meteorologists said can have the effect of pepping up weather systems already in place. 

On Monday, temperatures hit 84F (28.9C) in Larkhill, Wiltshire, closely followed by the 83.8F (28.8C) recorded at Santon Downham, Suffolk, and 83.6F (28.7C) at Middle Wallop in Hampshire.

Low pressure heading north-bound from the Atlantic is expected to sweep away any remaining sunshine and bring with it heavy rainfall, before the prolonged period of heat can be officially declared a heatwave. Above: A woman sits atop a paddleboard in Cullercoats Bay, north Tyneside

Low pressure heading north-bound from the Atlantic is expected to sweep away any remaining sunshine and bring with it heavy rainfall, before the prolonged period of heat can be officially declared a heatwave. Above: A woman sits atop a paddleboard in Cullercoats Bay, north Tyneside

A pair of women enjoy a chat in the sun and the view in Greenwich Park, London as parts of the UK are set for near record-breaking September temperatures again

A pair of women enjoy a chat in the sun and the view in Greenwich Park, London as parts of the UK are set for near record-breaking September temperatures again

The sizzling start to September continued on Wednesday as people lounged on deckchairs in Whitby Beach, Yorkshire

The sizzling start to September continued on Wednesday as people lounged on deckchairs in Whitby Beach, Yorkshire 

People enjoy a classic British seaside lunch of fish and chips on the edge of Whitby Beach, Yorkshire on Wednesday

People enjoy a classic British seaside lunch of fish and chips on the edge of Whitby Beach, Yorkshire on Wednesday

People of all ages were able to enjoy the final day of Britain's prolonged 86F heatwave. Above: A young girl pictured at Cullercoats Bay, north Tyneside

People of all ages were able to enjoy the final day of Britain’s prolonged 86F heatwave. Above: A young girl pictured at Cullercoats Bay, north Tyneside

Cyclists and the local wildlife are pictured during rush hour in Richmond Park, London on Wednesday morning as the mercury looks set to peak at 86F

Cyclists and the local wildlife are pictured during rush hour in Richmond Park, London on Wednesday morning as the mercury looks set to peak at 86F

Central, eastern and northern parts of England are expected to remain dry throughout Wednesday, with central England in particular expected to bake in near record-breaking September sun. Above: Cyclists pictured in Richmond Park, Wednesday

Central, eastern and northern parts of England are expected to remain dry throughout Wednesday, with central England in particular expected to bake in near record-breaking September sun. Above: Cyclists pictured in Richmond Park, Wednesday

Britain's three-day 86F heatwave set to end as Met Office predicts flooding, lightning and storms

The scorching start to September looks set to be heading to an abrupt end, with a yellow weather warning in place amid fears of flash flooding, thunderstorms and travel disruption

Low pressure heading north-bound from the Atlantic is expected to sweep away any remaining sunshine and bring with it heavy rainfall, before the prolonged period of heat can be officially declared a heatwave

Low pressure heading north-bound from the Atlantic is expected to sweep away any remaining sunshine and bring with it heavy rainfall, before the prolonged period of heat can be officially declared a heatwave

Temperatures are understood to be cooling by the end of the week, with Edinburgh, Belfast and London all in the mid-20s

Temperatures are understood to be cooling by the end of the week, with Edinburgh, Belfast and London all in the mid-20s

Experts have placed a weather warning for heavy rain and lightning across Devon, Cornwall and parts of South Wales from 11am on Wednesday.

That alert is then extended across much of the UK, encompassing Wales, West Midlands and the entire North of England from Thursday. 

Met Office Deputy Chief Meteorologist Dan Harris said, ‘The hot and clear weather currently being experienced across large parts of the UK is forecast to break down through the middle of the week as showers and thunderstorms arrive.

‘These will initially affect the southwest of the UK on Wednesday, before moving steadily north and developing across most areas through Thursday and Friday.

‘Thunderstorm warnings have been issued across a number of areas to highlight the potential for isolated impacts, including surface water flooding of homes and businesses, disruption to transport, and very isolated damage to infrastructure from lightning or hail.

‘The semi-random nature of showers and thunderstorms means that many places will not see any thunderstorms at all, so it’s not possible at this range to be more precise about the locations at risk, or indeed be more confident about the potential for impacts.’

But, the Met Office’s longer range weather forecast shows that a tropical storm due to cross the Atlantic later this month could affect UK-wide temperatures. 

Forecasters are predicting a risk of properties flooding across Northern Ireland and the South West, Midlands and North of England, as well as potential hail and thunderstorms battering much of the nation later this week

Forecasters are predicting a risk of properties flooding across Northern Ireland and the South West, Midlands and North of England, as well as potential hail and thunderstorms battering much of the nation later this week

The mercury has already topped 87F this September, the highest figure since July 22, and just the seventh time temperatures have exceeded 86F in September in the last fifty years

 The mercury has already topped 87F this September, the highest figure since July 22, and just the seventh time temperatures have exceeded 86F in September in the last fifty years

Yesterday Britons, who have been deprived of long sunny spells this summer, descended on the nation’s outdoor spaces in the heat.

The late blast of September sun comes after figures from the Met Office showed Southern England experienced its third dullest August since records began.

The region received only 129 hours of sunshine last month compared to its usual average of 192.5 hours. Only 2008 and 1950 were worse in terms of hours of sunshine.

Greg Dewhurst, a Met Office meteorologist, said: ‘We often get a warmer spell particularly early on in September.

‘August was particularly cool… and cloudy, so this spell is the warmest spell of weather since July for the UK.’

September has already beaten this August’s highest temperature of 81F (27.2C) in the UK, which last happened in 2016.

The current warm weather follows the official end of summer, from a meteorological point of view, which is considered to be August 31.

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