What to expect

• Flooding of homes and businesses could happen quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds
• Fast flowing or deep floodwater is possible, causing a danger to life
• Spray and sudden flooding could lead to difficult driving conditions and some road closures and 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
• Some communities might become cut off if roads flood

What should I do?

Issued: Wed 30 May 10:12

Further details

Thunderstorms are expected to move northwards into southern and some eastern parts of England during Thursday morning, with further heavy showers and thunderstorms developing across a wider area during the course of the afternoon and evening. Any thunderstorms over eastern England and the north Midlands will move through relatively quickly, but further south and west, they could become slow moving and lead to torrential rain in some places. There is the potential for 30-40 mm of rain to fall in an hour and perhaps as much as 60-80 mm in 2-3 hours. As well as this, frequent lightning and large hail are possible.

View full warning details & map view

Regions and local authorities affected

East Midlands

• Derbyshire
• Leicester
• Leicestershire
• Lincolnshire
• Northamptonshire
• Rutland

East of England

• Bedford
• Cambridgeshire
• Central Bedfordshire
• Essex
• Hertfordshire
• Luton
• Norfolk
• Peterborough
• Southend-on-Sea
• Suffolk
• Thurrock

London & South East England

• 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

South West England

• Bath and North East Somerset
• Bournemouth
• Bristol
• Devon
• Dorset
• Gloucestershire
• North Somerset
• Poole
• Somerset
• South Gloucestershire
• Swindon
• Wiltshire

Wales

• Blaenau Gwent
• Bridgend
• Caerphilly
• Cardiff
• Carmarthenshire
• Ceredigion
• Conwy
• Denbighshire
• Gwynedd
• Merthyr Tydfil
• Monmouthshire
• Neath Port Talbot
• Newport
• Pembrokeshire
• Powys
• Rhondda Cynon Taf
• Swansea
• Torfaen
• Vale of Glamorgan
• Wrexham

West Midlands

• Herefordshire
• Shropshire
• Staffordshire
• Telford and Wrekin
• Warwickshire
• West Midlands Conurbation
• Worcestershire