Thunderstorms and heavy downpours may develop in certain areas this afternoon and evening, potentially bringing 20 to 40 mm of rain in a short period of time. It is important to assess the risk of flash flooding in your area and prepare a flood plan and emergency kit if necessary. Checking road conditions and public transport schedules can help you avoid delays, while having torches, batteries, and other essential items ready can help you cope with power cuts. If caught outside during a thunderstorm, seek shelter in a safe enclosed space and avoid trees or structures that may attract lightning. Stay updated on weather warnings as they can change rapidly, according to the advice of the Met Office.