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  "path": "/weather/uk-weather-heatwave-thunderstorms-flooding-met-office",
  "publishedAt": "2026-05-27T07:52:25.000Z",
  "site": "https://www.gbnews.com",
  "tags": [
    "Britain bakes in what is likely to be the UK's hottest ever end to spring",
    "Britain set to enjoy 'historic' heat on 35C Bank Holiday Monday - before thunderstorms sweep in",
    "Volcano warning after 'terrifying' 6.0-magnitude earthquake rocks Hawaii",
    "The GB News Editorial Charter"
  ],
  "textContent": "\n\n\nRelentless heat ploughing the energy of an atom bomb into the atmosphere will explode with a deluge of thunderstorms.\n\nAs Britons sizzle in the hottest May temperatures ever recorded, experts warn the heatwave is about to erupt.\n\n###\n\n\n\n\nElectrical showers unleashing torrents of rain at the end of the week could spark flash floods.\n\nThe monsoon downpours will follow the hottest end to spring on record as May climaxes in searing 30C heat.\n\n###\n\n\n\n\nTRENDING\n\nStories\n\nVideos\n\nYour Say\n\n###\n\n\n\n\nJim Dale, meteorologist for British Weather Services, said: “There could be a lot of rain on Saturday and ahead of that, thunderstorms as heat and humidity build through the week.\n\n“The amount of energy in the atmosphere from the high temperatures is already high, and this will provide fuel for thunderstorms.\n\n“We are expecting some major downpours, and falling on dry ground after the past few weeks of little rain, there could be some issues with flash flooding.”\n\nMeanwhile, Britons are warned heatwave conditions will hold out into the middle of the week before turning slightly cooler in parts.\n\n###\n\n\n\n\n###\n\n\n\n\n###\n\n\n\n\nEastern coasts will catch a cooling North Sea breeze, while southern and western regions continue to bake.\n\nMet Office meteorologist Greg Dewhurst said: “High pressure is dominating as we move into Wednesday, but there is a slight change in the position of the high pressure, and this will allow some cooler air to filter in from the North Sea.\n\n“The east coast will be a little cooler with temperatures generally around 16C to 18C, but further south and west, where the warm air is holding on, it is approaching 30C or 31C, and this may be enough to trigger one or two thundery showers.\n\n“High pressure is holding on into Thursday with more of a southerly again, which pushes the cooler air back away to the east and allows the warmer air to filter further north and east with temperatures getting into the high 20Cs, and perhaps the odd rumble of thunder.”\n\n### LATEST DEVELOPMENTS\n\n\n\n\n  * Britain bakes in what is likely to be the UK's hottest ever end to spring\n  * Britain set to enjoy 'historic' heat on 35C Bank Holiday Monday - before thunderstorms sweep in\n  * Volcano warning after 'terrifying' 6.0-magnitude earthquake rocks Hawaii\n\n\n\n###\n\n\n\n\n###\n\n\n\n\nShowers are likely to turn heavier into the weekend as high pressure shifts allowing in Atlantic weather systems, he warned.\n\nHe said: “To end the week, a weather system is more likely to push north-eastwards brining some thicker cloud and showery outbreaks of rain.\n\n“As we move into the weekend, gradually it looks like Atlantic weather systems will start to move in, particularly across the north of the UK, turning it wetter and windier.”\n\nSearing heat over the bank holiday saw records for May tumble as the mercury simmered to 34.8C, at London’s Kew Gardens.\n\n###\n\n\n\n\n###\n\n\n\n\nSouthern counties hit similar temperatures yesterday as high pressure drove blue skies and fierce sunshine.\n\nUnprecedented heat and humidity ploughed millions of kilojoules of energy into the atmosphere, similar to an atomic explosion, turning CAPE (Convective Available Potential Energy) maps red.\n\nCAPE is used as a measure of atmospheric volatility and a gauge for the risk of thunderstorms.\n\n###\n\n\n\n\n###\n\n\n\n\n###\n\n\n\n\nElectrical downpours, however, are difficult to pinpoint, with experts warning of ‘sporadic’ storms.\n\nMr Dale said: “There could be scattered thunderstorms anywhere.”\n\n###\n\n\n\n\n\n\n\n\n\n\n**Our Standards: The GB News Editorial Charter**",
  "title": "UK weather: 'Atom bomb heatwave' sparks thunderstorm and flash flooding fears"
}