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UK weather warnings
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Warning overview for UK
Warning details for UK
Headline
Heavy rain and thunderstorms may lead to some disruption and flooding.
What to expect
- Spray and sudden flooding could lead to difficult driving conditions and some road closures
- Flooding of homes and businesses could happen quickly, with damage to some buildings from floodwater, lightning strikes or hail
- Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
- Power cuts might occur and other services to some homes and businesses could be lost
What should I do?
Further details
Heavy rain and thunderstorms will move into southern areas during Friday night, reaching south Wales and the Midlands early on Saturday. This is likely to bring frequent lightning, possible large hail and gusty winds as well as torrential rainfall for some. Where this occurs, perhaps most likely in central parts of southern England, 25 to 35 mm of rain could fall within an hour, with possible flooding. Further slow-moving thunderstorms will develop by Saturday afternoon across southern counties of England, easing only slowly through the evening. Not all places affected but where they occur, a renewed threat of torrential rainfall and flooding, some locations seeing 30 to 50 mm within an hour or two. Lightning, large hail and locally gusty winds could pose additional hazards.
Regions and local authorities affected:
- Northamptonshire
- Bedford
- Central Bedfordshire
- Essex
- Hertfordshire
- Luton
- Southend-on-Sea
- Thurrock
- Bracknell Forest
- Brighton and Hove
- Buckinghamshire
- East Sussex
- Greater London
- Hampshire
- Isle of Wight
- Kent
- Medway
- Milton Keynes
- Oxfordshire
- Portsmouth
- Reading
- Slough
- Southampton
- Surrey
- West Berkshire
- West Sussex
- Windsor and Maidenhead
- Wokingham
- Bath and North East Somerset
- Bournemouth Christchurch and Poole
- Bristol
- Cornwall
- Devon
- Dorset
- Gloucestershire
- Isles of Scilly
- North Somerset
- Plymouth
- Somerset
- South Gloucestershire
- Swindon
- Torbay
- Wiltshire
- Blaenau Gwent
- Bridgend
- Caerphilly
- Cardiff
- Carmarthenshire
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Pembrokeshire
- Powys
- Rhondda Cynon Taf
- Swansea
- Torfaen
- Vale of Glamorgan
- Herefordshire
- Warwickshire
- Worcestershire
Headline
Heavy showers and thunderstorms may lead to flooding and transport disruption in some places on Sunday, although many places remaining dry.
What to expect
- There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
- Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services
- Spray and sudden flooding could lead to difficult driving conditions and some road closures
- There is a small chance that some communities become cut off by flooded roads
- There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost
What should I do?
Further details
Heavy showers and thunderstorms are expected to develop across southern and eastern England and southeast Wales on Sunday. Some of the heaviest showers are expected to affect the southeast of England late morning after a period of early morning rainfall, before developing more widely across the warning area during the afternoon. Torrential downpours may develop in some places with hail and gusty winds additional hazards. Rainfall amounts will vary considerably from place to place, but there is the potential for up to 80-100 mm to build up in some locations over the course of the day.
Regions and local authorities affected:
- Northamptonshire
- Bedford
- Cambridgeshire
- Central Bedfordshire
- Essex
- Hertfordshire
- Luton
- Norfolk
- Southend-on-Sea
- Suffolk
- Thurrock
- Bracknell Forest
- Brighton and Hove
- Buckinghamshire
- East Sussex
- Greater London
- Hampshire
- Isle of Wight
- Kent
- Medway
- Milton Keynes
- Oxfordshire
- Portsmouth
- Reading
- Slough
- Southampton
- Surrey
- West Berkshire
- West Sussex
- Windsor and Maidenhead
- Wokingham
- Bath and North East Somerset
- Bournemouth Christchurch and Poole
- Bristol
- Devon
- Dorset
- Gloucestershire
- North Somerset
- Somerset
- South Gloucestershire
- Swindon
- Torbay
- Wiltshire
- Blaenau Gwent
- Caerphilly
- Cardiff
- Monmouthshire
- Newport
- Rhondda Cynon Taf
- Torfaen
- Vale of Glamorgan
- Herefordshire
- Warwickshire
- Worcestershire
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What do the warning colours mean?
Red warning
- 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.
Amber warning
- 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 warning
- 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.
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