THE UK will be lashed by lightning, hail and “sudden” floods as the Met Office issues six thunderstorm warnings.
Meanwhile, temperatures are set to soar to a staggering 30C ahead of the devastating weather on Saturday.
MET OfficeA huge swathe of the UK has been placed under a yellow weather warning[/caption]
Twitter/@Met OfficeA major storm will be sweeping in on Thursday[/caption]
AlamyThe thunderstorm is expected to bring fast winds and sudden floods[/caption]
Strong winds of up to 50mph are expected in Wales, as the storm sweeps across the UK.
Up to 20mm of rain could fall in just an hour, leading to fears of “sudden” floods.
A spokesperson for the Met Office said: “There is a small chance of fast flowing or deep floodwater causing danger to life.
“There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.
“Although many places within the warning area may not see any impacts, torrential downpours could bring 30-50mm of rain.”
As a result, the Met Office has issued a yellow warning to residents in Wales and Northern Ireland on June 12.
However, the worst of the weather is expected on Saturday.
Huge swathes of the UK, including the south west, west midlands and the North, along with Wales and Northern Ireland, will be placed under a yellow warning.
Heavy rain and flooding is expected in all of those areas, presenting a risk to life.
Meanwhile, as the storm batters the country, temperatures are also set to rocket up.
Highs of 30C are expected, with many branding the heatwave as a “Spanish plume”.
However, one Met Office expert has said: “The air is coming from Spain, but it originates a little further south.
“It actually originates across northern Africa, so you could argue it’s not a true Spanish plume but it is being affected by the mountains of central and northern Spain.
Driven by humid air brought over from Iberia, the peninsula occupied by Spain and Portugal, highs of 30C are expected.
The hot weather will arrive on Friday, leading the UK Health Security Agency (UKHSA) to issue an urgent yellow warning.
From Thursday 9pm to Sunday 8am, the east of England, London, the South East and the East Midlands will remain under the yellow warning.
The hot weather could cause an increase in risk to health for individuals over the age of 65 and for those with pre-existing health conditions, including cardiovascular diseases.
A spokesperson from the Met Office said: “As temperatures rise this week, it is possible heatwave thresholds could be reached in some parts of the UK, particularly the northwest Midlands, northwest England and northeast Wales, however it is very dependent on cloud cover later this week, so it is not a certainty.
“This warm spell will feel different to the fine weather we experienced in May as the humidity will be much higher, making it feel more uncomfortable.
“Additionally, while in May the nights were still fairly cool, overnight temperatures this week are forecast to remain fairly warm, which can disrupt people’s sleep.”
Since the start of 2025, the UK has been rocked by bizarre weather patterns which have seen temperatures exceed those in Ibiza.
Also, the country has weathered several storms including Storm Herminia and Storm Kathleen.
UK Weather Forecast: June 12 to June 16
Thunderstorms and heatwaves are expected across the UK from June 12 until June 15.
June 12
There will be rain across southwest England and Wales, which will move north throughout the day.
Warmer weather will be left in the storm’s wake, as the day becomes increasingly humid.
The Met Office have warned that it could be a “muggy” night for Brits across the country.
June 13
Although the south and southeast will face thunderstorms throughout the evening, it will largely be dry throughout the day for most of the country.
Temperatures could reach 30C in some parts of the country.
June 14-16
Heavy rain and thunderstorms will move northwards on Saturday, taking hail and gust winds with them.
Both Sunday and Monday will be drier for most of the country.
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