The Met Office has issued a yellow thunderstorm warning covering substantial areas of the UK for Thursday, indicating a risk of heavy rain, thunder, and lightning. This alert highlights the potential for localised flooding, travel disruption, and power outages across several regions, with twenty-four specific areas identified as being particularly susceptible to severe weather conditions.
The warning is primarily focused on parts of England, Wales, and Northern Ireland. In England, affected regions include the East Midlands, West Midlands, North West England, Yorkshire and Humber, and parts of the South East and South West. Cities such as Birmingham, Manchester, Leeds, and Nottingham are within the warning zone. For Wales, much of the country is covered, including Cardiff and Swansea, while in Northern Ireland, counties like Antrim, Armagh, Down, Fermanagh, Londonderry, and Tyrone are expected to experience the adverse conditions.
Forecasters predict that some areas could see between 20-30mm of rain in an hour, with a few localised spots potentially receiving up to 50mm over a two to three-hour period. This heavy rainfall, combined with the risk of frequent lightning, strong winds, and hail, could lead to challenging conditions. Temperatures are expected to remain mild, generally ranging from 18-22 degrees Celsius, but the focus will be on the intensity of the precipitation and associated hazards. Wind gusts could reach up to 30-40 mph in exposed areas during thunderstorms.
The Met Office advises the public to be prepared for potential impacts. These include difficult driving conditions due to surface water and spray, which could extend journey times. There is also a small chance of some communities becoming temporarily cut off due to flooded roads. Additionally, the risk of power cuts and disruptions to other services is present, urging residents to ensure essential devices are charged and to have torches readily available. The warning period is generally from early morning on Thursday through to the evening, though timings may vary slightly by region.
This latest warning follows a period of changeable weather across the UK, with previous days also seeing a mix of sunshine and showers. The current atmospheric conditions are conducive to the formation of these convective thunderstorms, which can be highly localised and intense. The Met Office will continue to monitor the situation and update its guidance as necessary.