Weather Warning

This warning affects:Bedford, Bracknell Forest, Brighton and Hove, Buckinghamshire, Cambridgeshire, Central Bedfordshire, East Sussex, Essex, Greater London, Hampshire, Hertfordshire, Kent, Luton, Medway, Oxfordshire, Portsmouth, Reading, Slough, Southend-on-Sea, Surrey, Thurrock, West Berkshire, West Sussex, Windsor and Maidenhead and Wokingham. View More

Amber warning of Thunderstorm

  • Issued by the Met Office

ImpactLikelihood

Between 3:00 am Sat Jul 19 and 10:00 am Sat Jul 19

Issued: 9:54 am on Fri Jul 18 2025

Torrential rain, with thunderstorms in places, could lead to some significant surface water flooding during Saturday morning

What to expect

  • Flooding of homes and businesses is likely and could happen quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.
  • Fast flowing or deep floodwater is likely, causing danger to life.
  • Where flooding or lightning strikes occur, delays and some cancellations to train and bus services are likely.
  • Spray and sudden flooding probably leading to difficult driving conditions and some road closures.
  • Some communities likely to become cut off if roads flood.
  • Power cuts likely to occur and other services to some homes and businesses could be lost.

If you would like further advice and guidance on what to do in severe weather, click here