Met Eireann issued a Status Orange wind warning for counties Donegal, Galway, Leitrim, Mayo, Sligo, Clasre, Cork and Kerry.
Met Eireann has officially named the weather front Storm Fionn.
Winds will be strongest near coasts with a risk of flooding.
Met Office forecaster Emma Sharples said: "We are expecting a period of very wet and windy weather on Tuesday night and although this will die down on Wednesday, another system is close behind".
Winds will reach gale force along the Atlantic Seaboard with some severe gusts and very high seas as well.
The warning remains in place from 3pm today, Tuesday, January 16 to 3am tomorrow.
Traffic battles through Storm Fionn on the M7 in Co Kildare
The weather crew have also issued three Status Yellow warnings, including a wind warning and a snow-ice warning. They also say the winds will moderate for a time on Wednesday but further warnings are likely Wednesday evening.
The warning covers Scotland and Northern Ireland, as well as parts of northern England, Wales and the Midlands which will last all day today and into Wednesday.
As a precaution, Seapoint Promenade is closed from Grattan Road to the D'Arcy roundabout.
Parts of the United Kingdom have already been left buried under snow overnight after a -7C wind blast, but Britain's set to get hit even harder tonight once the storm makes its way through Ireland today.
The country is now bracing itself for wintry showers and snow over the next two days.
It won't be over on Wednesday though, as a separate weather system crossing the Atlantic will bring strong winds to the United Kingdom from Wednesday night until Thursday afternoon.
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