- Copyright: John Lucas
CrossCountry train services between Southampton and Bournemouth have been cancelled because of the impact of Storm Brendan.
The firm said fewer trains were able to run on lines because of high winds.
National Rail Enquiries said tickets would be accepted on South Western Railway (SWR) services between the two stations.
SWR said it had cancelled some services between Bournemouth and Weymouth.
Speed restrictions are also in force on some lines in Hampshire and Dorset.
The disruption is expected to last until 21:00 GMT.
BBC News Travel
Severe problems on the rail network are set to continue into the afternoon.
Overhead wire damage in the Rugeley Trent Valley area means fewer railway lines are available. Services could be cancelled or diverted through Wolverhampton, adding 40 minutes to journey times.
London Northwestern Railway, Virgin Trains and West Midlands Railway services will be disrupted until 16:00.
Meanwhile, trains are running at slower speeds between Birmingham New Street and Bromsgrove/Redditch due to a fault with the signalling system.
BBC News Travel
Trains are not able to travel through Brockenhurst following a fire on board a train at the station.
British Transport Police said the "minor fire" on a CrossCountry train has been extinguished.
Services on the Southampton to Bournemouth line are expected to be disrupted until at least 14:00 GMT with rail replacement buses operating.
BBC Local Live
No CrossCountry trains are running between Plymouth and Exeter St Davids until at least 11:00, National Rail Enquiries says.
It said it was because of forecasted severe weather in the Dawlish area.
The move affects all stops on CrossCountry service between London Paddington and Penzance.
Passengers could use Great Western Railway services "on reasonable routes", it added.
A flood alert was issued for the area by the Environment Agency on Monday.
Anne Wafula-Strike was on a three-hour train journey with an out-of-order accessible loo.
BBC News Online
Train managers and senior conductors on Arriva CrossCountry are to stage a series of strikes, including action over Christmas and the New Year period.
The industrial action has been called by the Rail, Maritime and Transport Union, in a dispute over rostering and Sunday working.
Members will walk out for 24 hours on Sunday, followed by more 24-hour stoppages on 26 November and 9 December, Christmas Eve and New Year's eve, with strike action hitting Arriva's services from Plymouth to Aberdeen.Copyright: BBC
RMT general secretary Mick Cash said his members were standing up for "the principles of a decent work-life balance".
"The action goes ahead and the disruption to services will be solely down to Arriva management's intransigence."
In a statement on its website, the company said it would aim to operate an hourly service over most routes between 09:00 and 19:00, using some longer trains where possible.
"As it is a Sunday, engineering work will affect some routes and some services may need to be replaced by buses," the statement added.
BBC Local Live
If you're travelling between Darlington and Newcastle there will be delays of up to an hour and cancellations due to a kink in the rail.
A number of train companies have been affected by the kink, including CrossCountry, Transpennine and Virgin Trains.
Tickets are being accepted on Northern, ScotRail, Virgin Trains East and West Coast services.