A weather warning for heavy rain has been extended across parts of Northern Ireland until 6pm on Thursday evening.
The warning covers counties Antrim, Armagh and Down.
The Met Office has warned that some bus and train services could be affected with journey times taking longer, while spray and flooding on roads will make journey times longer.
The meteorological service added there could be some disruption to power supplies and other services.
A Met Office spokesperson said: “Outbreaks of rain will be persistent and heavy at times during Thursday.”
“Eastern counties will see the largest rainfall amounts, especially across Co Down and Co Antrim, where 30 to 50 mm is likely quite widely, and perhaps as much as 60 to 80 mm across high ground such as the Mournes.
“Despite recent dry weather, this may lead to some flooding and transport disruption.
“The rain is expected to slowly ease through the late afternoon period.”
Property owners are also advised to check the risk of flooding in their areas to consider preparing a flood plan and an emergency flood kit.
Commuters are asked to check road conditions if driving, or bus and train timetables, amending your travel plans if necessary.
Motorists are also reminded to exercise caution and reduce speed when driving due to the adverse weather conditions.
