Tonight, expect heavy showers and thunderstorms with the potential for 10-20 mm of rain, possibly even as much as 30 mm in less than an hour. Lightning and isolated hail are also possible hazards. The showers and storms will taper off later in the evening. It is important to assess your risk of flash flooding and consider creating a flood plan and emergency kit. Check road conditions and transportation schedules to avoid delays. Prepare for power outages by gathering necessary supplies like torches, batteries, and a mobile phone power pack. Take shelter in a safe enclosed area, like a car, during thunderstorms and avoid trees or other structures that could attract lightning strikes. Stay informed about changing weather warnings and follow recommendations from the Met Office to stay safe.