September 23, 2026

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Thunderstorm Alerts Issued as Warm, Humid Weather Transitions to Heavy Rain and Thunderstorms

Thunderstorm Alerts Issued as Warm, Humid Weather Transitions to Heavy Rain and Thunderstorms

Warnings Issued for Thunderstorms Across England and Wales

As warm and humid weather prevails, yellow warnings for thunderstorms have been announced for regions in England and Wales, effective Wednesday and Thursday. These conditions are likely to lead to an increased likelihood of heavy showers, thunderstorms, and extended periods of rain.

On Tuesday, the majority of England and Wales will experience continued warm and dry weather, with temperatures expected to reach the mid to high 20s Celsius. However, isolated showers and thunderstorms in the south-west are predicted to become more prevalent, developing across England and Wales by Tuesday evening and into the early hours of Wednesday. This situation poses the risk of prolonged rainfall, intense downpours, frequent lightning strikes, and potential disruptions.

Impact of Heavy Rain Expected on Thursday

On Thursday, a significant spread of slow-moving heavy and thundery rain is anticipated to advance northward across the UK. This may result in extended periods of rainfall in various locations, potentially leading to considerable accumulations over several hours. Such conditions raise the risk of localised impacts stemming from heavy rain and thunderstorms.

Chief Forecaster Steve Willington from the Met Office remarked, “As we approach Wednesday, the likelihood of heavy rain and thunderstorms will increase, driven by warm and humid air that can trigger intense showers. Some regions may experience substantial rainfall in a brief time frame, heightening the risk of localised flooding and travel disruptions, as well as frequent lightning.”

He further stated, “On Thursday, the slow-moving heavy and thundery rain may contribute to prolonged downpours in certain areas, intensifying the chances of localised impacts. There remains some uncertainty regarding the specific locations where the heaviest rain will occur, making it essential for the public to stay informed about the latest forecasts and warnings.”

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Outlook for Friday and the Weekend

Looking ahead to Friday and the weekend, unsettled weather conditions are likely to persist, with more showers or extended periods of rain expected at times, interspersed with drier and brighter spells.

To remain informed about weather warnings and updates, individuals can access the latest forecasts on the official website, YouTube, or social media platforms such as X and Facebook. The Met Office also offers a mobile application available for both iPhone on the App Store and for Android via the Google Play Store.