Forecasters say some coastal areas could be affected by large waves as it combines with a period of high tides.
A windy afternoon is forecast for Kildare as Storm Eleanor is predicted to hit the county early this evening.
An amber wind warning, valid from 19:30 GMT on Tuesday, has been issued for much of Northern Ireland.
"There is a small chance of injuries and danger to life, as well as minor property damage, from flying debris".
"Local coastal flooding is also possible for parts of the north-east and north-west coast during Wednesday and Thursday".
Carol Halt, the agency's flood duty manager, said: "We urge people to stay safe on the coast - take extreme care on coastal paths and promenades, and don't put yourself in unnecessary danger trying to take "storm selfies".More news: Millions across the World celebrate as 2018 rolls in
"If you're travelling, please check your route before setting off and don't drive through flood water".
The weather alert has been issued by Met Eireann with high winds expected across most counties including Kilkenny.
Police in North Yorkshire have warned drivers to be extra careful tonight and tomorrow.
He said: "Torrential rain and gale-force winds are a recipe for driving disaster".
"Wednesday daytime sees a very blustery day, with squally gusts accompanying showers in many areas".