The worst may not be over yet for the south of the country, as Met Éireann are currently reviewing their weather warning ahead of a potential 'weather bomb'.
The Ophelia-battered southern half of the country is now bracing itself for potential torrential rainfall and spot flooding. It is estimated that 60mm of rainfall will fall in the south over the next 24 hours alone.
Tweeting this morning, Met Éireann wrote; "The system that may become #StormBrian will undergo explosive cyclogenesis in the next 24 hours. Deepening from 1006hPa to 961hPa."
Speaking to Independent.ie, a forecaster said that an "explosive cyclogenesis", otherwise known as a 'weather bomb', is a rapidly deepening pressure system.
"We are now looking at the depression as it deepens and moves. It is predicted to move towards the south-west of Ireland tomorrow night and to move across the country.
"This will bring a risk of strong winds to the south of that, so we are now reviewing our weather warning," they added.
Heavy overnight rainfall left many roads around Cork city and county suffering from spot-flooding.
Worst hit were roads in the Mayfield, Glanmire, Bishopstown and quays areas of the city.
The torrential rainfall and spot flooding resulted in traffic misery for commuters with lengthy delays along all routes into the city.
However, motorists were warned to expect surface water and spot-flooding in parts of Cork county as well including Bandon, Macroom, Fermoy, Mallow and Skibbereen.
The heaviest rainfall will be tonight with the greatest risk of flooding in Cork city between 9am and 6pm tomorrow.
Cork City Council officials are carefully monitoring rainfall levels amid fears that, in combination with a high tide, parts of the city quays could flood.
Gardaí have urged motorists to slow down and exercise extreme care given the challenging driving conditions.
However, the greatest fear is that the heavy rain and winds could bring down trees badly weakened by Hurricane Ophelia last Monday.
Cork took the brunt of the damage from Ophelia with more than 400 trees ripped down across the city and county.
A total of 35 giant Lime trees - planted to mark the opening of Henry Ford's car plant in Cork more than 100 years ago - were knocked over like dominoes on the Centre Park Road by the winds which reached 130km/h.
The other fear is that the heavy rainfall and gusting winds, albeit nowhere near as strong as Ophelia's last Monday, could also delay the work of emergency crews in restoring electricity and power to storm-hit households.