A yellow weather warning for thunderstorms has been issued as parts of Wales brace for disruption including flash flooding, lightning strikes and power cuts following the recent heatwave.
The Met Office alert covers most of Wales, including Powys, as well as neighbouring areas such as Shropshire and Herefordshire. It is in force from midnight through to 10am on Friday.
Met Office map showing areas covered by a yellow thunderstorm warning on Friday. (Image: Met Office)
It comes as most of Wales and neighbouring English counties remain under an amber warning for extreme heat until midnight, with hot and humid conditions. Forecasters say temperatures will remain exceptionally warm both during the day and overnight.
Looking ahead to Friday morning, the Met Office says that while many areas may escape the worst of the storms, those that are hit could see intense downpours, hail and frequent lightning, along with gusts of up to 50-60mph - particularly in the south and west of the warning area.
There is also a risk of sudden flooding, with as much as 15-20mm of rain possible within an hour. This could lead to difficult driving conditions, surface water and some road closures.
Homes and businesses may be affected, with a small chance of fast-developing flooding and damage caused by strong winds, hail or lightning strikes.
Travel disruption is possible, with delays or cancellations to train and bus services in areas affected by flooding or lightning. Power cuts could also occur, potentially leaving some homes and businesses without essential services.
The Met Office is urging people to consider whether their property is at risk of flash flooding and prepare accordingly, including putting a plan in place and gathering emergency supplies.
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Residents are also advised to secure loose outdoor items such as bins, garden furniture and trampolines ahead of gusty winds, and to check road conditions or public transport updates before travelling.
People are being reminded that thunderstorms can develop quickly. Anyone caught outside is advised to seek shelter in a safe enclosed space, such as a car, and avoid trees or exposed high ground.
Forecasters say conditions could change rapidly and are advising people to stay up to date with the latest weather warnings and forecasts.
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