Expect heavy showers and thunderstorms to develop in the afternoon across parts of southwest England, Wales, and the West Midlands, tapering off in the evening. While some areas may be spared, those affected could see slow-moving, intense downpours with accumulations of 20-30 mm in an hour and possibly 40-50 mm in 2-3 hours in certain spots. Lightning and hail are also possible.
To prepare, assess your risk of flash flooding and create a flood plan and emergency kit if needed. Secure loose objects before strong winds hit, including bins, garden furniture, and tents. Check travel conditions if driving or taking public transport to avoid delays.
Be ready for power outages by gathering essentials like torches, batteries, and a mobile phone charger. If caught outside during a thunderstorm, seek shelter in a secure, enclosed area like a car and avoid tall structures or trees. Stay updated on weather warnings as they may change quickly.