The Met Office has sounded the alarm for North Wales as it issues a yellow thunderstorm warning, effective from 4pm to 9pm today. Residents in areas like Wrexham are bracing themselves for potentially hazardous conditions, including heavy downpours, lightning strikes, and strong winds.
Forecasters predict isolated heavy showers and thunderstorms will sweep across the region, moving north-eastwards during the afternoon and early evening. While not all areas within the warning zone may be severely affected, where thunderstorms do hit, they could bring significant rainfall – up to 20-30mm in a short space of time or even 40-50mm over a few hours.
As well as the risk of localised surface water flooding, residents can expect potential disruption to travel, with roads becoming hazardous due to standing water and reduced visibility. Lightning strikes may lead to power cuts and damage to buildings, while public transport services are likely to face delays or cancellations.
Before the storms hit, temperatures in North Wales are forecast to remain mild – possibly reaching 18-20 degrees Celsius – but will feel cooler with the rain's onset. Wind speeds are generally light at around 5-10 mph, though gusts could surge significantly higher – up to 30-40 mph – during intense thunderstorm activity.
Across the wider UK, other regions are experiencing varied weather patterns. While parts of England and Scotland enjoy more settled conditions with sunny spells, isolated showers cannot be ruled out in some areas. Northern Ireland is expected to remain largely dry, though cooler temperatures prevail compared to the south. The Met Office advises all residents in the warning area to stay informed about the latest forecasts and be prepared to take action if conditions worsen.
Practical safety advice includes securing loose outdoor items, avoiding unnecessary travel during the peak of the storms, and being cautious of potential flash flooding on roads. When driving, reduce speed, use headlights, and maintain a safe distance from other vehicles. In the event of a power cut, report it to your electricity network operator.