Bus Éireann will not operate any of its nationwide services - including the Expressway network - until 2pm today.
All Intercity train services are currently operating this morning except on the Limerick Junction to Waterford.
A speed restriction of 80kilometre per hour will be in place on the Waterford to Kilkenny route.
As a result delays of 15 to 30 minutes are expected to the Waterford Dublin service.
In the interest of passenger safety, Suirway Bus says they will not operate their scheduled road passenger services between Waterford and Dunmore East, Portlaw and Passage East for the complete day.