Met Éireann has issued a weather warning for every county ahead of the arrival of Storm Aiden.
A status orange wind warning will be in place from Saturday morning for Carlow, Kilkenny, Wexford, Wicklow, Cork, Kerry and Waterford.
This will see strong southerly winds reach mean speeds of 65 to 80km/h - with severe and damaging gusts of between 100 to 130km/h.
A separate status orange wind warning has also been issued for Donegal, Galway, Mayo, Sligo and Clare.
Here strong southwest to west winds will reach speeds of up to 80km/h, with severe and damaging gusts of as much as 130km/h.
#StormAiden has been named by Met Éireann for Halloween. Orange & yellow wind warnings are in effect for Sat. Potential for severe & damaging gusts.
All current warnings here : https://t.co/ozrQHtoOkt pic.twitter.com/9MNkmCIlqG
— Met Éireann (@MetEireann) October 30, 2020
And a status yellow wind warning will also be in place for the rest of the country.
The forecaster says strong to gale force southerly winds will veer westerly, with severe gusts possible.
A weather advisory has also been issued for the country from Friday night until Monday evening.
Met Éireann is forecasting very unsettled weather over the weekend, as a series of vigorous Atlantic weather systems pass close to Ireland.
Spells of heavy rain will lead to surface and river flooding - while very windy/stormy conditions at times could see severe and damaging gusts.
There will also be some coastal flooding due to the combination of low pressure, high tides and onshore winds.
And there is a warning of very high seas.