There is major disruption to Cross Country services between Oxford and Didcot Parkway, Bridgwater and Taunton, and Taunton and Plymouth/Penzance.
First Great Western said it would only be able to run four trains an hour between Reading and London Paddington this morning because of flooding near Maidenhead. South West Trains, Southeastern and Southern are also operating heavily-curtailed services.
More top news
The latest weather for the east with Philippa
The latest weather for the west with Philippa
Police are investigating the death of a man who was crushed to death by a vintage tram he was working on in Hampshire.