Met Éireann has issued two weather warnings ahead of Storm Hector, which is expected to bring gusts of up to 125km/h in parts of the south and northwest.
A Status Orange alert will come into effect for Donegal, Galway, Mayo and Sligo at 9pm with winds of up to 80km/h forecast. The alert will remain in place until 10am tomorrow.
A Status Yellow wind warning has been issued for Cavan, Monaghan, Leitrim, Roscommon, Clare and Kerry where gusts of up to 110km/h are likely.
The Road Safety Authority has urged motorists to take care during the stormy conditions and to be aware of falling debris.
The Office of Emergency Planning has also asked people to stay away from exposed coasts during the storm.
Met Éireann said it will be wet and windy this evening and early tonight, with severe and potentially damaging gusts in northwestern areas.
Galway City Council plans to close some roads and car parks in the Salthill area tonight, amid fears of coastal flooding.
The local authority says the main road along the promenade will be close from 7.30pm tonight until 7.30am tomorrow morning.
The closure will affect the route along the coast from Grattan Road to the Threadneedle Road.
In addition, Toft car park and the main parking area adjacent to the promenade will be closed for the same duration.
City council crews will be monitoring the situation, particularly around high tide tomorrow morning.
The council said some spot flooding was anticipated along the promenade and that it was also preparing for high water levels at the Spanish Arch.