31 of the 32 counties have been issued a weather warning.
Met Éireann has issued several weather warnings for Monday and Tuesday, and between their warnings and similar warnings issued by the UK Met Office, they encompass 31 of the 32 counties on the island.
Every county except Antrim is set to experience heavy rain and potential flooding conditions across Monday and Tuesday.
The first status yellow rainfall warning is issued to Munster, Connacht, Cavan, Monaghan, and Donegal, in place from 8am this morning (Monday, October 19) to 3pm on Tuesday.
The warning describes "Heavy rain at times Monday and Tuesday with a risk of flooding. Rainfall totals of around 30-50mm expected, possibly higher in mountainous areas."
Meanwhile, a second status yellow rain warning has been issued to Leinster, but isn't in effect until 11am on Monday morning, and is expected to remain in place until 3pm on Tuesday.
This warning states "Heavy rain at times Monday and Tuesday with a risk of local flooding. Rainfall totals of around 20-30mm expected, possibly higher in mountainous areas."
And finally, the UK Met Office issued their rainfall warning to Armagh, Down, Fermanagh, Tyrone, and Derry, in place from 5am this morning until 3am on Tuesday. Their warning reads: "Heavy rain may cause some travel disruption and flooding."