Wind, flooding, rain and snow disrupted transport and brought dangerous conditions to many parts of the country yesterday. Thousands of sea and air passengers were held up by cancellations and delays.
Although roads were passable there were hold-ups in some places due to flooding or fallen trees, and drivers were warned to exercise extreme care today.
Met Eireann warned drivers of icy conditions this morning, and AA Roadwatch advised motorists to look out for spot flooding, surface water and fallen trees and debris.
The whole country endured bad weather, although its intensity, and the effects, varied from place to place.
Flooding caused a three-mile tailback on the main Dublin-Cork road near Kildare town. Units of the Kildare Fire Service were called out to pump water from the road on Sunday evening. Widespread flooding was reported throughout the county with a number of minor roads closed to traffic, and drivers were warned to stay on the main roads.
Many minor roads in Sligo and north Leitrim were flooded, but apart from fallen trees in some exposed places the area escaped serious storm damage.
Ferry companies cancelled sailings although Irish Ferries' Dublin-Holyhead sailing took place last night.
Passengers at Dublin Airport faced waits of up to two hours as bad weather in Britain and on the Continent disrupted flights. The vast majority of passengers did, however, get flights, an Aer Rianta spokesman said.
AA Roadwatch reported no serious traffic problems in Cork, Galway, Limerick or Waterford, but warned motorists to look out for surface flooding.
Waves came up on to the coast road between Skerries and Balbriggan in Co Dublin.
Crosswinds, sleet and snow caused very dangerous driving conditions at the Dunleer by-pass.
Bailieboro, Co Cavan, had six inches of snow while snow also fell in Cavan town. Parts of Co Louth and Co Meath had frequent showers but the wet ground turned them to slush.
What was claimed to be the first snow of the new year fell over the north Sligo mountains. Farmers were out on Benbulben, Glencar and Truskmore mountains tending to sheep on the point of early lambing.
Some of the worst weather was in Northern Ireland, where galeforce winds, rain and snow caused travel chaos. The Met Office warned of icy conditions on many roads, particularly in Derry, Tyrone and Fermanagh.
Several hundred homes in the North were without electricity after high winds brought down power lines. However, a spokeswoman for Northern Ireland Electricity said: "In comparison to Christmas, it hasn't been as bad as we were expecting.
"We have had problems in scattered areas, but in essence we are talking about 4,000 customers affected in the whole of the province." Most had been reconnected by last night.
A six-mile stretch of the Ballygally-Glenarm road in Co Antrim was closed after a rock landslide.
After snow showers last night the RUC warned drivers to go out only where necessary. Several roads were blocked by snow and there were a number of minor accidents on the Glenshane Pass in Co Derry. While most roads in the Republic were passable yesterday, Met Eireann warned of icy and dangerous conditions overnight.