The powerful storm front has resulted in a nationwide snow-ice warning due to kick in tonight at 11pm.
Hours after issuing a weather warning for seven counties in light of the expected arrival of Storm Caroline on Thursday, Met Éireann have issued a second status yellow wind warning for four counties that comes into effect on Wednesday. Northwest winds of 55-65km/h are expected to gust 110-110km/h, with the strongest winds in coastal areas and over high ground.
Temperatures are expected to drop from Thursday afternoon, with the cold spell persisting into the weekend, resulting in a risk of hail and snow particularly in western and northern areas.
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It should clear up by Saturday but there is still a risk of wintry showers.
"Minimum temperatures will be between -2C and 2C, with frost and icy stretches, especially in places sheltered from the fresh north-westerly wind".
Forecasters had earlier warned it will be "bitterly cold" for the rest of the week despite a mild day today.