The warning is in place from 11am until 8pm today (Wednesday, September 3) and is for thunderstorms and heavy showers.
Weather conditions are expected to impact driving conditions with a chance of hail, and the Met Office has warned that train services may also be affected.
The Met Office added that damage to buildings and structures is probable, with strong winds and lightning strikes.
It’s an unsettled afternoon for many with areas of heavy rain and thundery showers moving across the UK 🌧️
Strong winds will also affect southern coasts
Northwest Scotland is likely to stay the driest overall pic.twitter.com/FgWKARTdjh
— Met Office (@metoffice) September 3, 2025
See the full weather forecast via the Met Office website.
London issued a yellow weather warning for thunderstorms
A Met Office spokesperson said: “Scattered heavy showers, some with thunder, are expected to develop later this morning and into the afternoon, before easing this evening.
“In the most active storms, hail, strong gusty winds, and lightning may be impactful.
“There is also a chance that a few spots could see frequent, heavy bursts of rain, leading to surface water flooding.”
Sharing what you should do during heavy rain and thunderstorms, the Met Office shared:
Recommended Reading
- Consider if your location is at risk of flash 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.
- 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.
The warning is in place from 11am to 8pm on Wednesday, September 3.
