Heavy rain has brought a risk of flooding in the County Down area, residents have been warned.
People living in parts of Antrim and Armagh have also been warned of severe weather, with Lisburn City Council establishing a flood hotline.
The Met Office said localised flooding was a possibility and that road conditions "would be very poor".
Drivers are warned to slow down, use dipped headlights and take extra care because of spray and poor visibility.
FLOOD HELPLINES
Some ferry services have also been affected due to the strengthening winds. The gates at the harbour in Annalong have been washed away in the bad weather.
Heavy rain has resulted in floods in parts of Dublin, Wicklow and Cork city.
Down District Council warned people living in what it described as "a key risk area" and issued a set of precautions.
Relocate
The council said householders should move as many key documents to higher positions in the home, seal important documents, insurance policies and photographs in plastic bags and make a list of useful of numbers.
It added that families should make plans to relocate and make arrangements for relatives who have special needs
Sandbags can be obtained from the Roads Service by telephoning 028 44 812612.
Lisburn City Council's flooding helpline can be reached on 08000 512512.
BBC Newsline weather forecaster Angie Phillips said Friday evening would remain wet and windy although the rain would gradually ease and become lighter and patchier.
FLOODING IMAGES
"Low pressure has been driving heavy rain north into Northern Ireland, along with strengthening north-easterly winds," Ms Phillips said.
"Some patchy rain may linger close to the east coast for a time on Saturday, otherwise turning drier and brighter from the west, but still cool and windy.
"Winds will be lighter by Sunday, which will also be mainly fine and dry."
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