A Status Yellow rainfall warning has been issued for counties in the west and northwest for tomorrow and Saturday.
Met Éireann said that heavy rain, with accumulations of 40-50mm, will result in localised flooding in Galway, Mayo, Sligo and Donegal.
High seas and strong to gale force southerly winds will also combine to give a risk of coastal flooding.
The warning is valid from 3pm tomorrow until 3pm on Saturday.
Status Yellow - Rainfall warning for Donegal, Galway, Mayo and Sligo pic.twitter.com/nPjIJjlIKk— Met Éireann (@MetEireann) January 9, 2020