Met Eireann has issued a status yellow wind warning for Ireland.
The warning is valid from 9am tomorrow morning until 6am on Friday morning.
And a more severe level orange wind warning is in place for counties Mayo, Galway, Clare Cork, Kerry and Limerick.
The orange warning comes into effect from 6pm tomorrow evening until 3am Friday morning, with gusts of up to 130 km/hour - higher in coastal regions.
Met Eireann says the storm surges will produce coastal floods and damage.
Meanwhile, the National Emergency Co-Ordination Group will meet again this morning to discuss nationwide preparations for the expected arrival of Storm Lorenzo tomorrow.
The Minister for Housing, Planning, and Local Government Eoghan Murphy said he is very concerned about the potential impact of the storm in coastal areas and the damage that could be caused by falling trees.
Counties along the West and Southern coasts are expected to be the worst affected.