There is a possibility of heavy showers and thunderstorms in the south and west of the area early Sunday afternoon, which will gradually move northward, expanding into larger areas of heavy rain before clearing by late evening. Some areas may experience intense downpours with the potential for up to 30 mm of rain in less than an hour and possibly 50 mm over 2 to 3 hours, leading to surface water flooding. Large hail, frequent lightning strikes, and potentially strong wind gusts are additional localized hazards to be aware of.
To prepare for potential flash flooding, assess if your location is at risk and consider creating a flood plan and assembling an emergency flood kit. Secure moveable objects and structures, such as bins, garden furniture, trampolines, tents, gazebos, sheds, and fences to prevent damage from gusty winds. Stay updated on road conditions, bus and train timetables, and adjust travel plans accordingly to avoid delays.
Being ready for power cuts can make coping easier; gather essentials like torches, batteries, a mobile phone power pack, and other necessary items in advance. If you are outdoors during a thunderstorm, seek shelter in a safe enclosed area, such as a car, and avoid standing near trees or structures that could be struck by lightning. Stay alert for rapidly changing weather warnings and keep informed of the forecast for your area as advised by the Met Office.