Strong winds and heavy rain are leading to dangerous conditions in parts of Ireland this morning, with motorists being advised to drive with extreme care.
Met Éireann has issued a status orange weather warning, with gusts of up to 130km/h expected for Connacht, Donegal, Clare, Cork, Kerry and Limerick.
High tides and strong winds have caused flooding in parts of Salthill and Galway city.
Parts of the promenade in Salthill are under water and the road has been closed to traffic.
Waves have been crashing on to the promenade since high tide at 6am.
There is flooding on many approach roads to Salthill and gardaí are advising motorists to exercise extreme caution.
Galway docks and the area around the Spanish Arch are also flooded. Roads there are closed to traffic this morning and diversions are in place.
A section of Munster Avenue is impassable and there is flooding in parts of the Claddagh, close to the River Corrib.
Gardaí said there is spot flooding on the coast road to Oranmore.
About 5,000 people are without electricity as the high winds damaged power lines overnight.
The majority of the faults are in the west, northwest and southwest, with counties Donegal, Mayo, Galway and Clare, among the worst affected areas.
There are reports of trees and other debris on roads in several counties.
Parts of Cork city were badly hit last night by rising waters from the River Lee. A number of homes had to be evacuated.
However, high tide passed this morning without major flooding.
There is surface water on South Terrace, Fr Matthew Quay and Morrison’s Island, but it does not appear to have entered buildings.
A flight from Manchester to Cork Airport landed safely on its third attempt last night after the airport declared a full emergency.
The Aer Lingus Regional flight, operated by Aer Arann, touched down in the strong winds just before midnight. There were 50 people on board the plane.
In Belfast, police have been delivering thousands of sandbags overnight to people in the east of the city.
They are advising residents to be prepared for possible evacuation amid fears of a tidal surge.
The stormy weather is causing travel disruption with Irish Ferries, P&O Ferries and Stena Line having already cancelled a number of services today.
Aer Lingus said that due to adverse weather conditions affecting the northeast of the United States, in particular the Boston area, there may be disruption to flight schedules and ground transportation.