Motorists have been advised to be careful after heavy rain caused flooding.
In Belfast, Townsend Street has been closed while there are reports of deep surface water on part of the Lisburn Road.
Parts of the Antrim Road, the Blacks Road and the Knock dual carriageway are affected, the BBC reported.
There are also delays on the Hillhall Road.
The BBC also reported flooding on the road out of Coleraine towards Derry, on the A2 Bangor Road between Larch Hill and the Cultra Station Road.
Townsend Street #belfast #weather #flooding @irish_news @StormHour pic.twitter.com/D33Vpvh286
— Mal McCann (@MalMccann) November 12, 2019
A8 (m) towards Junction 4 Sandyknowes Roundabout
— Trafficwatch NI (@TrafficwatchNI) November 12, 2019
Malone Road into Belfast City Centre
A1 Lisburn Road towards Belfast City Centre
Ormeau Road into BelfastTownsend Street is CLOSED following flooding (07:40)
Laganbank Road is CLOSED following flooding (07:55)
Police have advised motorists to slow down and keep an eye out for surface water.
A yellow severe weather warning for rain in counties Down and Antrim was issued by the Met Office.
The warning is in place until 11am this morning.
A yellow severe weather warning for #rain has been issued: https://t.co/QwDLMfRBfs. Stay #weatheraware @metofficeuk pic.twitter.com/pg3k9fOsqF
— Met Office (@metoffice) November 12, 2019
the daily task of deciphering road safety from mammy. I’m travelling from clonoe direction to ballymena just to put things into perspective- photos of said ‘flooding’ to follow. pic.twitter.com/8PO6qoJVsM
— Ciara (@Ciara_McKeown) November 12, 2019
This is the A1 Belfast to Dublin. Torrential rain causing severe flooding ??
— Cool FM (@coolfm) July 28, 2018
Kerri Truesdale pic.twitter.com/5XeJOftFuk
We've had a call to say there's bad flooding on the #A2 #Bangor Road between Larch Hill and the #Cultra Station Road (near the @FolkTransport museum). We're hearing it's like a river in places heading towards #Belfast
— BBCNI Travel (@BBCNITravel) November 12, 2019
We're getting texts to say there's severe flooding on the A29 Moneysharvan Road at the junction with the #Kilrea Road, outside #Maghera. It's apparently passable with care but drivers are travelling in single file in the middle of the road
— BBCNI Travel (@BBCNITravel) November 12, 2019