Met Eireann issued three updated weather warnings on Wednesday as prolonged rain is set to hit Ireland.
Three Status Yellow rain alerts were already issued for ten counties with flooding expected for some areas.
A rain warning for Kerry is in place from 1am on Wednesday until 1am on Thursday.
Another weather warning for Cork is in effect from 3am on Wednesday until 3am on Thursday.
The third Status Yellow rain warning applies to eight counties and will last from 5am on Wednesday until 5am on Thursday.
The counties impacted are Carlow, Kildare, Kilkenny, Laois, Wexford, Wicklow, Tipperary and Waterford.
In the latest updates from Met Eireann, a Status Orange rain warning was released for three counties.
Following recent heavy rain, there will be “additional significant accumulations of rainfall” on Wednesday evening and overnight with flooding in places, the forecaster said.
The alert is in place for Waterford, Wexford and Wicklow from 5.30pm on Wednesday until 8am on Thursday.
Meanwhile, an updated Status Yellow rain warning was also issued for Kildare, Laois and Tipperary.
It is in effect from 5.30pm on Wednesday until 7am on Thursday, bringing “heavy spells of persistent rain will lead to localised flooding”.
Carlow and Kilkenny are also subject to an urgent Status Yellow rain warning update, with the alert in place from 5.30pm on Wednesday until 6am on Thursday.
As for the national outlook, Met Eireann said: “Further outbreaks of rain will feed up from the south on Wednesday night, heavy and persistent across Munster and Leinster and especially across the southeast, bringing localised flooding.
“Drier and clearer intervals will occur across the west and northwest. Temperatures generally not falling below 10 to 13 degrees, slightly cooler in the west and northwest. Light to moderate southerly winds generally, but continuing fresh to strong across southern and eastern counties.
“Tomorrow, the heavy rain in the southeast and east will clear during the morning. However, further heavy showers or longer spells of rain will follow from the west during the day with a risk of isolated thunderstorms.
“Sunny spells will break through later in the morning and during the afternoon. Highest temperatures of 12 to 15 degrees in light to moderate south to southwest breezes.
“Unsettled for the rest of the week with rain and showers, driest and brightest across the east. Turning cooler with a return to more typical daytime values.”