Weather Warnings Archive: Sunday 20 Jul 2025 19:31 BST - UK

issued by the Metoffice at
   18:31, 20.07.2025

valid from
   11:00, 20.07.2025
until
   22:00, 20.07.2025

Region: Wales

Showery outbreaks of rain, heavy and perhaps thundery in places, will move northwestwards from late Sunday morning and through the afternoon before gradually easing during the evening. Accumulations of 10-20 mm are expected fairly widely, with a few places potentially receiving as much as 40 mm, much of this falling in just a few hours. This could lead to some surface water flooding. What Should I Do? Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

Showery rain, heavy and perhaps thundery, may cause some localised surface water flooding on Sunday

The public is advised to take extra care, further information and advice can be found here: http://www.metoffice.gov.uk/weather/uk/links.html

issued by the Metoffice at
   18:31, 20.07.2025

valid from
   18:00, 19.07.2025
until
   22:00, 20.07.2025

Region: Wales

Scattered heavy showers and thunderstorms are expected to develop during the course of Sunday. Rainfall amounts will vary from place to place but in some locations 20-40 mm is possible within a couple of hours. Heavy downpours of rain will be the primary hazard, but lightning strikes are also likely along with the potential for hail and gusty winds. What Should I Do? Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

Heavy showers and scattered thunderstorms may cause some localised flooding and transport disruption.

The public is advised to take extra care, further information and advice can be found here: http://www.metoffice.gov.uk/weather/uk/links.html