The Met Office has issued a widespread yellow thunderstorm warning across significant portions of the United Kingdom, alerting residents to the potential for disruptive weather conditions. The warning, which came into effect from early morning, forecasts heavy rain, frequent lightning, hail, and strong winds, creating a risk of localised flooding and travel disruption.
Regions most affected by the warning include much of England, particularly the south, extending into parts of Wales. Further north, areas of Scotland and Northern Ireland are also covered, albeit with varying degrees of intensity. Forecasters anticipate rainfall totals could reach 20-30mm in a short period, with some isolated spots potentially seeing up to 50mm over a few hours. Wind gusts accompanying the thunderstorms could reach 30-40 mph, exacerbating the risk of fallen branches and difficult driving conditions.
The primary concern for the Met Office is the potential for surface water flooding, which could impact homes and businesses, as well as leading to challenging road conditions. Public transport, including rail and bus services, may experience delays or cancellations. There is also a risk of power cuts due to lightning strikes affecting electrical infrastructure. The warning highlights the unpredictable nature of thunderstorms, with impacts varying significantly even within short distances.
For England, the warning covers a broad swathe from the South East to the North West, including major cities like London, Birmingham, and Manchester. Wales is largely encompassed by the warning, with particular emphasis on coastal and central regions. In Scotland, south-western areas are most likely to see the effects, while parts of Northern Ireland are also under the yellow alert. Temperatures are expected to remain mild before and after the storms, typically ranging from 15-20 degrees Celsius, but will drop sharply during downpours.
The Met Office advises the public to prepare for potential disruption by securing loose outdoor items, checking travel updates before embarking on journeys, and being aware of the risks associated with driving through standing water. If caught in a thunderstorm, individuals are urged to seek shelter indoors and avoid contact with electrical equipment. The warning is expected to remain in place for most of the day, with conditions gradually easing overnight.