The Department for Infrastructure's (DfI) roads and rivers teams are on stand-by "ready to respond" amid multiple weather warnings for heavy rain and flooding across Northern Ireland.
Following a meeting on Thursday, the DfI said that it may be "necessary to close roads or put temporary restrictions in place".
The Met Office has issued a yellow rain warning for counties Antrim, Armagh, Down, Londonderry and Tyrone, in place until 23:59 GMT on Friday, while a status orange is in place for parts of the Republic of Ireland.
The warnings come after weeks of heavy rain and flooding in some areas.
Some road flooding is possible especially in the east and south eastern areas and along coastal routes, and the public are reminded to take extra care when travelling.
Jason Carnduff, owner of Saints N Sinners restaurant in Donagahee, said he had to close his business early on Thursday due to flooding.
He described how parts of the sea wall along the parade have crumbled due to flooding and adverse weather over recent weeks.
"The whole road was flooded, every time the door opened, there was two inches of water coming in, it was crazy," he told the Evening Extra programme.
"I actually had to get customers, lead them out the back door and drive them round to their car at the front, the waves were actually moving the cars in the street".
According to the Met Office, most places will receive between 10-20 mm of rain.
Showers are expected to be persistent in parts of the Mourne Mountains and Antrim Hills.
Given the record-breaking amounts of rain that fell in January, the ground is saturated and very sensitive to further rainfall.
Impacts of flooding may be low in many areas but in parts of Counties Down and Antrim, disruption is likely to be more significant
Southeasterly winds will be strong to gale force in coastal areas and large waves may form along parts of the east coast leading to hazardous travelling conditions.
There is also a possibility of isolated power cuts and disruption to other services, while flooding of a few homes and business businesses cannot be ruled out.
All remaining Stena Line sailings out of Belfast on Thursday have been cancelled, while the 03:30 GMT sailing from Belfast to Cairnryan on Friday morning has been marked as "in doubt".
The status orange rain warning will be in place for Dublin and Wicklow until 12:00 Friday, while a status orange rain warning is in place in Waterford until 09:00 on Friday.
Another status orange warning has been issued for Louth, in place until 18:00 Friday.
In a nationwide weather advisory, Irish forecaster Met Éireann has warned that flooding is likely due to a combination of already saturated ground, high river levels and high tides.
The Road Safety Authority is urging drivers to take care on the roads.
Dublin City Council said it was monitoring river levels and coastal conditions closely to "ensure appropriate responses as required".
It said its crews were active across the city, with removal of debris at rivers and blockage clearing ongoing to minimise negative impacts.
The council has a "limited supply of sandbags at strategic locations for use in response to identified flooding risks".
Wicklow County Council said it was in a "state of readiness" ahead of the Status Orange warning.
It said it had taken a number of preventative measures, including replenishing stocks of sandbags, closing roads subject to flooding and structural damage, and crews working to clear drains and gullies that have become blocked with flood debris.
In Waterford, the council said high tide had passed on Thursday morning and flood defence barriers had been effective.
Waterford City and County Council ground crews are on site to monitor the situation.
Weather stations at Dublin Airport and Phoenix Park in Dublin both recorded their wettest January since 1948.
A study carried out between Maynooth University and Met Éireann found that the amount of rain over eight days, including during Storm Chandra, was three times more likely due to climate change.
The detective constable was a main contact between the police and Noah's mother Fiona Donohoe.
Thousands of PSNI staff had their names shared after an FOI request had been made and information was posted online.
The Irish president is on a three-day visit to Northern Ireland and was in Londonderry on Thursday.
In 2023 the former councillor was disqualified from holding public office for a three-year period over a breach of its code of conduct.
Bertie Frazer, a part-time UDR soldier, was killed in an IRA gun attack in Ballymoyer in 1975.
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