Today
Storm Dennis brings very wet and windy weather today with some severe and damaging gusts.
Outbreaks of heavy rain will extend nationwide during the morning accompanied by gale force southerly winds.
The rain will be squally at times with a risk of embedded thunderstorms.
Localised flooding is expected with some coastal overtopping along the Atlantic seaboard.
Highest temperatures of 9 to 12 degrees.
Tonight
Further spells of heavy rain tonight with some thundery downpours likely and further flooding.
The rain will eventually break up into showers towards dawn.
Winds will ease for a time inland, but gales will continue in coastal counties.
Lowest temperatures of 1 to 4 degrees.
Tomorrow
The effects of Storm Dennis will continue tomorrow, Sunday.
A wet and very windy day with stormy conditions in Atlantic coastal counties, especially in northwestern counties, with very severe and squally winds.
Widespread heavy showers, especially in the north and west, with a risk of hail and thunder.
Some of the showers may turn wintry on higher ground.
Drier and brighter at times in parts of the east and south.
Highest temperatures of 7 to 9 degrees, but feeling cooler in the strong southwesterly breezes.