Met Eireann are warning of very strong winds Wednesday evening into the early hours of Thursday.
Southwest to west winds will reach mean speeds between 50 and 65km/h with gusts between 90 and 110 km/h.
High seas along Atlantic coasts with a risk of coastal flooding.
Here is the forecast:
This morning there will be sunny spells and scattered showers, some may be of sleet in the north and east or snow on higher ground. Fresh to strong and gusty westerly winds will gradually moderate through the day. Later this afternoon heavy and persistent rain will push into Atlantic coastal counties in a strengthening south to southwest wind and winds will increase again gale force along southwest coasts later. The rain will spread further inland during the evening and possibly turn to sleet or snow over Ulster and north Leinster. Cold with afternoon temperatures of just 3 to 7 degrees.
This evening and early tonight will become very windy as a spell of heavy rain spreads eastwards and clears to scattered showers later in the night. However, in the north rain will turn to sleet and snow leading to significant accumulations of snow. Westerly winds will be very strong with severe gusts over Leinster, Munster and parts of Connacht but in the north winds will be fresh to strong. But as the rain clears winds will moderate. Lowest temperatures will be 0 to +4 degrees.