A 26-hour status orange rain warning will be in place for Cork, Kerry, Wexford, Wicklow and Waterford from tonight.
Met Eireann says the five counties can expect disruption, while flooding is likely from 10pm tonight until the early hours of Thursday morning.
A similar status yellow alert will run in Carlow, Kilkenny and Tipperary from 10pm for 24 hours.
While Cavan, Monaghan, Dublin, Kildare, Louth and Meath will be under a status yellow warning from 4am tomorrow until midnight.
Scholars Unearth Wicklow Mountains Site As Largest Known Nucleated Prehistoric Settlement
Wicklow Property Prices Jump By €30,000 In 12 Months
UPDATE: N11 Vehicle On Fire Near Arklow. Care Advised
Nearly €1.4m Spent To Expand Glen of the Downs Nature Reserve
Contrasting Patterns In Wicklow Crime Figures & Statistics Year-On-Year