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UK weather warnings
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Yellow weather warning
Yellow weather warning
Warning details for UK
Thunderstorms may bring disruption in some areas, especially to travel.
What to expect
- Spray and sudden flooding could lead to difficult driving conditions and some road closures
- Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services, as well as possible power cuts
- There is a small chance that homes and businesses could be flooded, with damage due to floodwater or lightning strikes.
Developing showers and thunderstorms are likely to intensify across parts of the warning area through the evening, before easing away eastwards after midnight. Quite a lot of places will probably avoid the heaviest rain and thunder, but others could experience torrential downpours and frequent lightning, while large hail and strong wind gusts may also affect a few places. Central parts of southern England are perhaps most likely to see impacts. Rainfall amounts will be highly variable, as is usual in such situations, but the wettest spots perhaps seeing around 25 mm of rain inside an hour, and a possibility that somewhere could catch over 40 mm in 2 or 3 hours.
Warning impact matrix
Regions and local authorities affected:
- Central Bedfordshire
- Bracknell Forest
- Brighton and Hove
- East Sussex
- Greater London
- Isle of Wight
- Milton Keynes
- West Berkshire
- West Sussex
- Windsor and Maidenhead
- Bournemouth Christchurch and Poole
What do the warning colours mean?
- Dangerous weather is expected and, if you have not done so already, you should take action now to keep yourself and others safe from the impact of the severe weather.
- It is very likely that there will be a risk to life, with substantial disruption to travel, energy supplies and possibly widespread damage to property and infrastructure.
- There is an increased likelihood of impacts from severe weather, which could potentially disrupt your plans.
- This means there is the possibility of travel delays, road and rail closures, power cuts and the potential risk to life and property.
- Yellow warnings can be issued for a range of weather situations.
- It is important to read the content of yellow warnings to determine which weather situation is being covered by the warning.