A Status Yellow weather warning has been issued by Met Éireann for counties Louth, Meath, Dublin, Wicklow and Wexford, from 9pm tonight.
The warning is valid between 9pm on Wednesday (November 18) to 2am on Thursday morning.
Met Éireann say west to northwest winds will reach mean speeds of 50 to 65 kilometres per hour, with gusts of 90 to 110 kilometres per hour.
The combination of strong winds coupled with high tides brings an increased risk of coastal flooding in coastal areas in the five counties.
Similar wind warnings have been issued for Antrim, Down, Donegal, Leitrim, Sligo, Galway, Mayo, Clare, Cork, Kerry and Limerick, meaning virtually every coastal county nationwide will be under a Status Yellow warning at some point today and tonight.