Four counties have been placed under a status yellow wind warning as strong winds and heavy rain are set to batter the country tomorrow.
Met Eireann issued the alert for Clare, Cork, Kerry and Galway.
The yellow warning will come into effect at 1pm tomorrow and will remain in place until 7pm.
The national forecaster predicts wind speeds of up 110km and said there was a potential "for localised spray and wave overtopping along Atlantic coasts."
Met Eireann said: "Very strong and gusty west to southwest winds during Wednesday afternoon and evening.
"Gusts of up to 90 to 110km/h, strongest winds in exposed areas. Potential for localised spray and wave overtopping along Atlantic coasts."
Weather bosses added: "Heavy rain will clear the northeast tomorrow morning.
"Tomorrow will be windy with sunny spells and scattered showers, some with hail and thunder, especially closer to the Atlantic coast.
"Highest temperatures of 7 to 10 degrees with fresh to strong and gusty southwest winds developing.
"Winds will be very strong at times along Atlantic coasts through the afternoon, with high seas also."
In addition, Antrim, Armagh and Down in Northern Ireland were placed under a yellow weather alert for rain by the UK Met Office.
It comes as Ireland will soon be blitzed by brutal winds and torrential downpours driven by two mega-freezes on either side of the Atlantic.
Meanwhile, the collision between cold and mild air over the North Atlantic is also expected to fire up the jet stream and drag violent low-pressure systems towards Ireland.
Meteorologist Jim Dale told Express : “Very cold weather is currently affecting Canada and North America and Russia and Ukraine.
“We are in the middle and when we get that we see an upset and unsettled pattern of weather in between. We are between two big freezes, in the mixer in between, and so for the next week at least we are going to get a bit of everything.”
The country is sandwiched between a whiteout gripping Canada and parts of North America, with another crippling Russia and some of Eastern Europe.
Forecasters say the interaction of the two cold air masses either side of milder air over Northern Europe will help drive the week-long deluge.
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