Met Éireann has issued a warning of heavy rainfall and strong winds for Co Cork as the remnants of ex-tropical storm Sebastien track to the south coast of Ireland overnight tonight.

The conditions will be especially difficult on coastal areas of the county for a time during the early hours of tomorrow.

Cork County Council have advised that the forecasted heavy rain and winds will coincide with a period of very high astronomical spring tides in all coastal areas tomorrow morning between 4am and 6am, and again tomorrow evening.

Morrisons Island, Union Quay, Father Mathew Quay and Wandesford Quay will be closed from 7pm tonight.

Storm surge levels are currently low in coastal areas but levels are predicted to increase, by .50m in Cork Harbour and in Bantry Bay, from tomorrow morning until Wednesday.

Motorists and pedestrians are advised to take caution in coastal areas.

Cork County Council has said it will continue to monitor surge and sea level forecasts throughout the notice period.

Separately, a Status Yellow Gale warning has also been issued for Irish coastal waters from Carnsore Point to Mizen Head to Slyne Head as winds are expected to increase overnight.