Status Yellow wind and rainfall warnings have been issued for Cork.
Between 30mm and 60mm of rain is expected to fall between 12pm today until midnight tomorrow night.
The rainfall warning is for Clare, Cork, Kerry and Limerick.
The highest amounts will be in Kerry, especially in mountainous areas.
A wind warning has also been issued for Cork, Kerry, Wexford and Waterford.
West to southwest winds, veering northwesterly, will reach mean speeds of 50 to 65 km/h with gusts of 90 to 110 Km/h, and higher in coastal and mountainous areas of Kerry and Cork.
The wind warning will remain in effect until 6am tomorrow.