Met Éireann has warned the public about unsafe driving conditions on roads and a threat to life and property Storm Brendan will pose on Monday in its advice about the impacts of Storm Brendan on the eve of it hitting Ireland.
Two Status Orange weather warnings have been issued by Met Eireann covering much of the south and west of Ireland, while the remainder of the country is under a status yellow warning.
According to the warning: "An area of very strong winds will move eastwards across the United Kingdom through Monday afternoon and evening, clearing eastwards overnight". After a dry start on Monday, the gales are forecast to push across Britain as the day progresses.
He said, "Coastal flooding could potentially be the biggest impact from Storm Brendan".
It said there was a "significant risk" of coastal flooding due to the combination of high spring tides and storm surge.
The storm is expected to hit the west coast early on Monday morning and then track across the country.
The directorate said local authorities had activated coordination and crisis management arrangements to prepare for the arrival of Brendan.
The warning is valid from 7am on Monday until midnight.
The Met Office has issued a yellow warning for Northern Ireland from midday to midnight.
According to details on the Met Office website tomorrow will be "a widely very windy period" with "some disruption to travel likely".
"The public are also advised to AVOID ALL forest and Park areas due to risk of injury & danger to life".