13/07/2018 12:00 BST | Updated 13/07/2018 13:24 BST

UK Weather: Thunderstorms And Downpours Expected As Yellow Warning Issued

30mm of rain could fall in just one hour.

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Yellow weather warnings have been issued between 11am and 8pm with up to 30mm of rain expected to fall within just an hour

Thunderstorms and huge downpours are set to bring a dramatic end to the heatwave on Friday, with the Met office issuing a yellow weather warning amid fears some regions may receive 30mm of rain in just one hour. 

Following weeks of record-breaking temperatures, the Met Office issued a string of warnings for thunderstorms - some of which are the first of their kind in some areas. 

Croydon today had its first thunderstorm warning in 164 years. It is also the first time Greater Manchester has received the advisory. 

“Heavy showers, which will become thundery in places, are expected to develop quite widely across parts of England and Wales later Friday morning and through the afternoon. A few places could receive 20-30 mm of rain within an hour,” the Met Office said in a statement.  

The weather warning is in place from 11am until 8pm and the Met Office suggested there may be some “short term” loss of power and other services, damage to homes and businesses and delays to train services. 

Highways England tweeted shortly before 11am that it was already starting to see heavy rain on top of the M62 and urged motorists to take “extra care”.

Boroughs in the east midlands, east of England, London and the south east of England, north west England, south west England, Wales, the west midlands and Yorkshire and Humberside have also been hit with the storm warning.

The rain will sweep in from the west and become heaviest this afternoon in Wales and south west England.

Aidan McGivern, meteorologist at the Met Office, told the Mirror: “The thunderstorm risk becomes more widespread. Wales and southern England most at risk of some really quite nasty downpours. We could see quite a deluge.

“It can cause some flash flooding in places.

“Some places likely to get a deluge from these showers, but others could miss the rain. It is hit and miss.”

Wimbledon has not yet experienced its annual downpour but its feared rain may dampen the semi-final spirits today when Rafael Nadal and Novak Djokovic are set to clash. 

Despite today’s expected downpours, forecasters said the weather will improve again for the weekend, with temperatures reaching up to 30C in the south or eastern England.