A speed restriction has been imposed because of heavy rain across the Southern, Thameslink, Gatwick Express and Great Northern networks. Trains running may be delayed or revised.
Disruption is expected until 09:00.
Customer advice
Heavy rainfall may disrupt your journey, as it is affecting parts of the Southern, Thameslink, Gatwick Express and Great Northern networks this morning.
You can use your normal route at the moment, but there are some speed restrictions in place, which may cause delays.
Routes affected at present:
We will keep this list up to date.
Southern, Thameslink and Gatwick Express:
Trains will currently have minor delays between Wivelsfield, Haywards Heath and Balcombe.
Southern and Thameslink:
Access to Merstham Station is currently difficult due to flooding at the main entrance. Staff are on site to assist where they can.
Southern services:
Trains are currently unable to run directly from Lewes towards Haywards Heath via Cooksbridge and Plumpton. Trains will run at reduced speeds in the other direction. This is due to flooding in Lewes Tunnel. Where possible, trains will divert via Brighton.
If you are travelling towards Cooksbridge or Plumpton, please speak to station staff at Lewes for advice.
If you are travelling from these stations towards Haywards Heath and stations to London, please use the green Emergency button on the station Help Point.
Can you tell me more about the incident?
To protect railway infrastructure and ensure that any hazards can be spotted by drivers, temporary speed restrictions are put in place when rain reaches a certain level. This morning's heavy, thundery rain is particularly likely to lead to these restrictions.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.