Rail passengers have been urged not to travel on certain lines this morning.
Network Rail has advised people not to travel today on the following routes:
Penzance to London Paddington
Newport to London Paddington
Swansea to London Paddington via Cardiff Central
Bristol Parkway to London Paddington
Bristol Temple Meads, Swindon, Reading to London Paddington
Worcester to London Paddington
Exeter St Davids to Okehampton Exeter to Barnstaple
Rail passengers have been urged not to travel between Broxbourne, Hertfordshire, and Stansted Airport after multiple fallen trees damaged the electrical overhead wires.
Southern said some services on Monday will be cancelled or revised because of forecast severe weather, including on its London network and the West Coastway between Havant and Southampton.