Arctic conditions which affected traffic over the weekend are over for the moment, according to the Meteorological Service. Snow and ice which have not thawed will cause some problems this morning, but most roads should be clear by the end of the day.
Buses in Dublin were running normally on main routes yesterday and last night, though some routes into housing estates were held up until about 11 a.m. Services will be normal today. There were no reports of any disruptions of Bus Eireann services.
All Stena Sealink sailings from Dun Laoghaire to Holyhead were cancelled after the morning ferry left at 9.15 a.m. due to very high winds at Holyhead and big swells on the Irish Sea, a spokeswoman said. A decision on today's sailings will be made at about 7 30 a.m. she said. Passengers are advised to telephone 01-2047799.
Ms Lorraine Keane of AA Roadwatch said it was almost lunchtime yesterday before the thaw had any effect on the icy roads in the midlands.
Mr Vincent O'Shea of the Meteorological Service said we can expect a lot of dry, cold weather, with a stiff easterly wind, especially in the south, for the rest of the week. There may be some light showers of sleet and snow.
In Belfast, dozens of people escaped serious injury in the North's biggest traffic accident at the weekend. An RUC officer said that "only the grace of God" prevented death when around 30 cars collided on the Westlink motorway in Belfast on Saturday.
A heavy snowstorm caused motorists to drive blind from slip roads into the path of other cars.