Met Eireann is warning of heavy rain and thundery conditions in Clare tomorrow.
The National Forecast service has issued a low status yellow weather warning for Friday evening.
In total 19 counties received the warning, including the rest of Munster, all of Leinster and Galway.
The warning begins at 4pm on tomorrow afternoon and is expected to run until midnight.
Met Eireann says spot flooding and challenging travelling conditions are likely.