Rainfall is moving across the country, as ex-Tropical Storm Helene hits Irish shores.
A band of heavy rain is forecast to move eastwards late Monday night and into Tuesday morning.
Unsettled weather will remain into Tuesday, with another band of heavier rain on Wednesday.
Met Éireann says this week will see "a very active period of weather".
Monday night will see intense bursts of rain, which may bring some spot flooding.
The heaviest of the rain is forecast between 8.00pm Monday and 5.00am Tuesday.
However most of this will clear by early Tuesday morning.
A stormy start to a lively week ?? pic.twitter.com/9egQJ5nTzv
— Met Office (@metoffice) September 17, 2018
The forecaster adds: "A very active period of weather is now expected to follow over the coming days with an assembly line of low pressure systems swinging close to our shores, bringing strong winds and heavy rain at times.
"There is potential that wind or rainfall warnings will be required in at least some parts of the country over the next few days associated with these Atlantic low pressure systems."
A status yellow rainfall warning is in place for Donegal, Galway, Leitrim, Mayo and Sligo.
This will bring heavy rain at times, with falls of 25 to 40 mm expected and a risk of local flooding.
This warning is in place until 5.00am on Tuesday morning.
A separate small craft warning is also in place.
Mainly dry in most areas this evening with just a few showers, but heavy rain continuing in parts of Conn & W Ulst. Blustery with fresh to strong &gusty S'ly winds. Rain will become widespread tonight with lows 11-14C. Rain will clear most areas again by dawn & winds will ease pic.twitter.com/Stp2BA7tXm
— Met Éireann (@MetEireann) September 17, 2018
