Up to 3,500 people have been left without electricity in heavy storms in the Republic of Ireland.
In Northern Ireland, weather warnings have also been issued as the third storm of the season, Storm Clodagh, moved in.
The Met Office issued a yellow warning for severe gales with gusts up to 60mph (100km/h) for exposed areas.
A yellow warning means plan ahead and consider possible travel delays and disruption.
Wind and heavy rain across Northern Ireland is making driving conditions hazardous.
Police have advised drivers to slow down, use lights and drive with extra care.
As the weather deteriorated, a Christmas market in Magherafelt, County Londonderry, had to be cancelled as gales ripped through the stalls.
A tree fell on a house in Drumbeemore in County Armagh during high winds
The Irish meteorological office issued multiple weather warnings on Sunday as Storm Clodagh swept across the country.
South-westerly winds were expected to reach speeds of 60-80km/h (37-49mph) with gusts of 100-130km/h (62-80mph).
The storm is expected to move across Ireland and then on to Scotland.
In the Republic of Ireland, the areas hit by power cuts include Cratloe, County Limerick, where 449 customers were affected; Buncrana, County Donegal where there were 269 outages and 185 customers were without electricity in Clonminch, County Offaly.
More than 45,000 people were left without power when Storm Barney hit Ireland less than two weeks ago.