Expect heavy showers turning thundery in western and central parts of Northern Ireland from late Sunday morning. While many areas may avoid the heaviest showers, some places could see 30-40 mm of rain in an hour or two, possibly with hail. Showers will diminish in the evening.
To prepare for potential flash flooding, assess if your location is at risk and make a flood plan and emergency kit. Secure moveable objects and structures like bins, garden furniture, trampolines, tents, gazebos, sheds, and fences before gusty winds. Check road conditions and public transport schedules for possible delays. Be ready for power cuts by gathering essentials like torches, batteries, a mobile phone power pack, and other necessities.
If outside during thunderstorms, find safe shelter like a car and avoid trees or tall structures. Stay informed about changing weather warnings and follow Met Office recommendations for your area.